Yoshimura GSX-R 1000 Exhaust Review

Yoshimura GSX-R 1000 Exhaust Review

A free-flowing exhaust is one of the better and more popular things you can modify your motorcycle with, whether you're a track rider or a street rider. This kind of upgrade could probably benefit the Suzuki GSX-R1000 sportbike the most.

The jiggy-1K is definitely fast enough in stock form at 157 hp. This outright power isn't the problem; the problem comes from the black, unsightly canisters that dangle from both sides of the bike like infectious growths.

Of course, exhaust upgrading isn't only about appearances. We're really not that vain. The restriction of the GSX-R benefits both the health of the environment and the sanity of your neighbors. Yoshumur R&D have solved this problem for you, so fear not!

Yaoshimura is very familiar with the competition. The company's knowledge about tuning a Suzuki GSX-R can be easily seen in the eight Ben Spies and Mat Mladin Superbike Championships that have been won over the last nine years.

There are five pieces in the TRC exhaust system : the carbon fiber muffler, the stainless steel header, flanges and manifold, and the tail pipe. The whole system is held together by ten exhaust springs and a pair of clamps. Even looking closely, the details are exceptional. The welds defy perfection with their seamlessness, and the thick, gold pipes look like they're some kind of mechanical artworks. The beautiful, lightweight carbon fiber muffler seems like it could be used in a NASA space shuttle.

You only need a simple set of metric tools for the straightforward installation. Yoshimura provides extremely details and precise instructions to cope with the complex technology that's now incorporated into modern sportbikes, like the electronic and mechanical exhaust valves in the OEM exhaust. It's no longer possible to just unbolt your old pipe and fit the new one on.

Yoshimura Power Gains

Peak numbers only gained slightly, which was surprising. Still, with the augmented exhaust, the mid-range of the Gixxer was significantly boosted from 6000 rpm to 10,000 rpm before the lines converged again. Over-rev has a slight increase and there's a slower top-end power signoff, so that's another advantage over the basic configuration. Peak numbers only increased slightly, which we were surprised by. Nevertheless, with the altered exhaust, the middle range of the Gixxer was seriously amped from 6000 rpm to 10,000 rpm before the lines met again. Over-rev saw a marginal increase and there was more gradual top-end power signoff, so that was another benefit over the stock configuration.

We used a Mickey Cohen Motorsports' Dynojet 200i dyno to test our upgraded superbike, and were again surprised when we witnessed only slight gains in peak numbers - just over 1 hp and 1 foot-pound of torque. With the altered exhaust, the middle range of the Gixxer was nevertheless seriously bumped from 6000 rpm up to 10,000 rpm before the lines converged again. Over-rev had a minimal increase, and the top-end signoff was slower, so that presents another benefit above the stock configuration.

The advanced fuel injection system of the GSX-R1000 means that remapping isn't necessary to have a machine that runs cleanly. Engine performance can still be augmented by buying a differen fuel injection module, like Dynojet's Power Commander, and having an official Dynojet Tuning Center install it professionally. The Tuning Center can increase your torque and horsepower, in addition to creating a customized map of your bike to smooth your power curve out.

The big Suzuki's appearance is completely transformed by the Yoshimura system. The back of the bike appears to be much less cluttered. In field tests, it's hard to measure a weight improvement but the scales don't lie and this svelte little thunderpipe put our Gixxer on the scale at 447 pounds. That took a WHOPPING 19 pounds off of stock! This would show on the racetrack.

A ride around town showed us a crisp response from the throttle, and the excellent sounds coming from the carbon fiber muffler told everyone around that this bike was something unique. Ultimately, the Yosh system added a lot to the riding experience. Yosh has what you want if you want to make your bike lighter, give it some roar and power, and sharpen up your bike's aesthetics.

Buy Yoshimura GSXR 1000 Exhaust here.

Akrapovic GSXR Line Up

If you’ve bought, or are on the verge of buying, a 2009 Suzuki GSX-R1000 and are hankering for some new pipe work then Akrapovic has four different exhaust slip-ons that will be available later this year, all with differing styles and advantages.

Titanium Megaphone This neat combo slip-on may not be road legal but it does have removable dB baffles that keep them within noise level limits. Weight reduction figures are expected to be healthy over the standard silencers and power increase is a claimed 5bhp.
Conical Slip On Available with a titanium cone finish with carbon outlet caps, the Conical option is fully road legal with removable baffles. Power increase is again a claimed 5bhp at peak revs. But Akrapovic are also suggesting a large increase in torque between 5000 and 8000rpm.
Hexagonal Slip On This is the silencer choice of the Crescent British Superbike Suzuki team. The silencers are fully road legal and come with removable baffles. Power increase and torque improvements are the same claimed figures as the Conical slip-ons.
Hexagonal Slip On Single Silencer There is also a single silencer option of the hexagonal style, which does away with the catalytic converter. It has a removable baffle but is not road legal. Power increase is a claimed 8bhp and the torque improvement between 5000 and 8000rpm is higher than any other model here.

How to tell a GSXR 750 year?

How often should you change the oil on a motorcycle?

N. A Freeman asked:

I just bought my first bike so i need some tips, it's a 2004 suzuki gsxr 600.

Suzuki GSXR 1000 K8

To the team of Suzuki engineers responsible for the Suzuki GSX-R 1000, Own The Racetrack is not just a slogan, it is a way of life. It is a life dedicated to making the most successful open-class motorcycle in the history of production-based racing even better. By applying the latest technology and the most recent hard-fought racing experience. And keeping the Suzuki GSX-R 1000 K8 well ahead of the would-be competition.

The Key is the motorcycles’ ability to do precisely what the rider wants, when the rider wants, how the rider wants. Accelerate. Brake. Corner. Repeat. Make it easier for the rider, and the results will show. With better lap times on the racetrack, and more fun on the road. It is called Total Performance. It is what makes the Suzuki GSX-R 1000 2008 the Top Performer. And it is why Suzuki riders Own The Racetrack.

Engine Features
48mm ventilation holes between cylinders reduce pumping losses
999cc 4-stroke, 4-cylinder, liquid-cooled engine for increased power, torque and acceleration with forged aluminum alloy pistons, chrome-moly shotpeened connecting rods, hollow camshafts, and a secondary balancer shaft for reduced vibration
Back-torque limiting clutch allows smooth downshifts, plus a rack and pinion operating system provides a positive clutch feel
Compact fuel injection system features the Suzuki Dual Throttle Valve System (SDTV) – with twelve smaller holes for maximum fuel delivery and steeper angle for secondary injectors
High volume Suzuki Advanced Exhaust System (SAES) with equal length head pipes feeding a unique under engine chamber leading to two compact aluminum/titanium mufflers on each side
Idle Speed Control (ISC) system for improved cold starting, consistent idle quality and reduced emissions
Radiator utilizes a trapezoidal shape seen on works race bikes. The oil pump is larger for increased capacity and performance.
S-DMS (Suzuki-Drive Mode Selector) system allows the rider to choose from three engine settings to match track conditions with a handlebar mounted switch
Self adjusting hydraulic clutch uses and minimzes changes in clutch feel over a long race
The mid-pipe includes a Suzuki Exhaust Tuning (SET) system for maximum torque throughout the rpm range and an oxygen sensor used by the engine management system and combined with the under-engine catalyzer for reduced emissions

Chassis Features
310mm front brake discs are attached to the carrier with 10 floating mounts instead of 8 for improved heat transfer away from the disc
Adjustable rider footpegs can be moved into three different positions to suit rider preferences
Aluminum alloy twin-spar frame is built using five castings for lightweight, unmatched handling and performance, increased production precision, and reduced weight.
An easy-to-read instrument cluster includes a step motor controlled analog tachometer, digital LCD speedometer, dual tripmeters, clock, convenient gear position sensor, rpm indicator light and a new LCD S-DMS mode indicator displaying which performance setting has been selected by the rider
Bridgestone radial tires mounted on cast aluminum wheels featuring thin spoke design with optimized wall thickness to reduce unsprung weight
Close-ratio six-speed transmission with an adjustable back torque limiter for smoother downshifts.
Die-cast aluminum-alloy swingarm is more rigid and features an innovative new link system which pivots on the swingarm itself for increased traction and reduced side loads.
DLC coated 43mm forks and rear shock feature high and low speed compression damping along with adjustable rebound and preload settings
Electronically controlled steering damper uses a solenoid valve to move a tapered needle reducing or increasing oil flow to adjust damping force.
Forks feature larger 56mm outer tubes below the triple clamp for increased rigidity.
Rear disc works with a single piston caliper and is mounted above the swingarm for reduced braking effect on the rear suspension
Vertically stacked headlight features a compact projector bulb and when combined with the sleek bodywork and tailsection offer maximum rider mobility and unmatched styling
Wind tunnel developed bodywork features an aggressive style, reduced frontal area and a tall windscreen for optimum aerodynamic performance

Specifications

Chassis:
Brakes Front    Disc brake, twin
Brakes Rear    Disc brake
Color    Blue/White, Black/Gold, White/Silver
Dry Weight    172 kg (379 lbs)
Final Drive    D.I.D 530, 112 links
Fuel Tank Capacity    17.5 L (4.6/3.8 US/Imp gal)
Ground Clearance    130 mm (5.1 in)
Overall Length    2045 mm (80.5 in)
Overall Width    720 mm (28.3 in)
Seat Height    810 mm (31.9 in)
Suspension Front    Inverted telescopic, coil spring, oil damped
Suspension Rear    Link type, coil spring, oil damped
Tires Front    120/70ZR17M/C (58W), tubeless
Tires Rear    190/50ZR17M/C (73W), tubeless
Transmission    6-speed constant mesh
Wheelbase    1415 mm (55.7 in)

Engine:
Bore Stroke    73.4 x 59.0mm
Compression Ratio    12.5 : 1
Engine    4-stroke, liquid-cooled, DOHC
Fuel System    Fuel injection
Ignition    Electronic ignition (Transistorized)
Lubrication    Wet sump
Starter    Electric

Suzuki GSXR 600 K8

Genuine Performance Engineering
Introducing the Suzuki GSX-R 600 2008. Advanced, compact and efficient 600cc engine ? featuring SDTV throttle body with dual-injector and S-DMS selectable mapping. Edgy, aerodynamically refined look.

A tuned chassis with race-proven geometry. The Suzuki GSX-R 600 2008. A true middleweight racer replica packed with genuine Suzuki engineering and delivering balanced performance.

It is the Suzuki GSX-R of the middleweight class, a product of Suzuki’s legendary Integrated Design approach. A machine designed and refined by a team of talented engineers working together to build a motorcycle that delivers Balanced Performance.

A revised, compact combination of chassis and engine, fitted with advanced electronics, effective suspension and radial-mount brakes to not only make more power and accelerate harder but also to handle better, with the goal being a quicker lap time around a racetrack. Packaged with exciting new styling and increased lighting and aerodynamics.

Ignore the lights and mirrors and the fact that this is also the cleanest-running four-cylinder 600cc motorcycle that Suzuki has ever built, and it’s easy to imagine the Suzuki GSX-R 600 K8 rolling directly out of a race shop.

New Engine

• Combustion chamber shape is new and features an increased compression ratio of 12.8:1for maximum performance
• New 32 bit ECM features 1024 kilobytes of ROM for maximum engine performance working in conjunction with the new S-DMS engine management system
• New clutch cover and oil pan feature new internal ribs for increased rigidity and reduced engine noise
• New electronic fuel injection system features Suzuki Dual Throttle Valve (SDTV) system – with dual fuel injectors per cylinder and new compact 8 hole, fine spray injectors for improved fuel atomization.
• New exhaust cam tappets diameters are now larger at 25.0mm for increased flexibility in cam profile design
• New forged aluminum alloy pistons are designed to work with increased compression ratio, new iridium spark plugs and updated combustion chamber shape.
• New high volume Suzuki Advanced Exhaust System (SAES) with an innovative under engine chamber leading to a new large volume muffler with a new distinctly shaped triangular silencer
• New hydraulic cam chain tensioner automatically adjusts while reducing noise and mechanical losses.
• New Idle Speed Control (ISC) system for improved cold starting, consistent idle quality and reduced emissions
• New Ignition coil outer diameter is smaller for reduced weight and the starter motor uses new rare earth magnets for a compact lightweight design
• New larger ventilation holes located between the cylinder bores are increased to 41mm for reduced internal pumping pressure and reduced mechanical losses
• New S-DMS engine management system allows the rider to choose from three engine settings to match riding conditions with a handlebar mounted switch
• Suzuki Exhaust Tuning system is built into the mid-pipe using a servo-controlled butterfly valve to tune the exhaust system to match engine rpm and improving low end torque
• Under deceleration the back torque limiting clutch reduces pressure on the clutch plates for smoother downshifting and corner entry
• Updated compact and lightweight 599cc 4-stroke, 4-cylinder, liquid-cooled engine designed with increased performance and responsiveness in mind

New Chassis

• Aggressive new overall design features a well balanced combination of compactness with the high performance look of a Suzuki GSX-R
• Lightweight Tokico single piston rear brake caliper is mounted on a new rear caliper bracket for ease of maintenance when removing the rear wheel or working on the rear brake
• New diecast aluminum seat rail features an updated two piece design for reduced weight
• New electronically controlled steering damper uses a solenoid valve to move a tapered needle reducing or increasing oil flow to adjust damping force.
• New fuel tank features a Suzuki GSX-R 1000 inspired design and fuel capacity is increased to 17 liters
• New lightweight cast aluminum wheels featuring a new angled spoke design for improved rigidity, reduced unsprung weight and improved acceleration
• New three headlight layout features a projector low beam and multi-reflector headlamps for left and right high beams creating improved light distribution
• Sharp new bodywork design features an aggressive new look featuring a bold new headlight design and new angular tail section for the new Suzuki GSX-R 600 K8

Chassis Features

• An aluminum-alloy frame utilizing five cast sections is engineered to deliver the ideal balance of rigidity for improved handling and less weight
• Braced aluminum alloy swingarm is rigid with a large swingarm pivot and the swingarm assembly is designed for optimum suspension feedback and rear wheel traction
• Innovative rear suspension linkage features a forged aluminum alloy link and one piece forged aluminum alloy link rod designed to increase traction and reduce side loads
• Inverted 41mm Showa front forks are fully adjustable for rebound, compression and preload settings with optimum rake and trail dimensions for incredible cornering performance.
• New three way adjustable footpegs now feature die-cast construction and can be moved into three different positions with a 14mm horizontal and vertical range
• Radial mount four piston front brake calipers works with new lightweight 310mm front brake rotors and a revised front brake master cylinder
• Showa 46 mm aluminum alloy rear shock features a 16mm rod and is completely adjustable for rebound, high and low speed compression and preload damping
• The compact lightweight instrument cluster features a step motor controlled analog tach, LCD speedometer, dual tripmeters, clock, fuel reserve and a gear position indicator

Specifications

Engine Type		4-cylinder, inline, 4-stroke, liquid-cooled, DOHC
Bore x Stroke		67.0 mm x 42.5 mm
Engine Displacement		599 cm3 (cc)
Compression Ratio		12.8 : 1
Carburetion		Fuel injection
Oil Capacity (overhaul)		2.9L (0.8 US gal.)
Ignition Type		Electronic ignition (fully transistorized)
Starter System		Electric
Lubrication System		Wet sump
Transmission		6-speed constant mesh
Primary Drive Ratio		1.977 (77 / 39)
Final Drive Ratio		2.687 (43 / 16)
Frame Type		Twin-spar diamond (aluminium-alloy)
Rake/Trail		23.8 degrees / 98 mm (3.9 in.)
Suspension	Front	Inverted telescopic, coil spring, oil damped, spring preload fully adustable, rebound and compression damping force fully adjustable
	Rear	Link type, coil spring, oil damped, spring preload fully adjustable, compression damping 2-way fully adjustable, rebound damping fully adjustable
Wheels	Front	17M/C x MT3.50, cast aluminium-alloy
	Rear	17M/C x MT5.50, cast aluminium-alloy
Brakes	Front	Radial mount, 4-piston calipers, 310 mm disc, twin
	Rear	1-piston caliper, 220 mm disc
Tires	Front	120/70ZR17M/C (58W), tubeless
	Rear	180/55ZR17M/C (73W), tubeless
Fuel tank		17.05 L (4.5 US gal.)
Overall length		2,040 mm (80.3in.)
Overall Width		715 mm (28.1in.)
Overall height		1,125 mm (44.3in.)
Wheelbase		1,400 mm (55.1in.)
Seat height		810 mm (31.9in.)
Dry weight		165 kg (363lbs.)
Colors		Glass splash white / Pearl vigor blue (CWH), Metallic mistic silver / Candy max orange (FGH), Marble daytona yellow / Metallic mistic silver (EDS), Solid black / Metallic mat black No.2 (CRU), Glass splash white / Metallic mistic

Suzuki GSXR 750 K8

Introducing the Suzuki GSX-R 750 K8. With the most powerful, efficient and cleanest running 750cc four stroke production engine Suzuki has ever produced. A new cast-aluminum-alloy frame. Exciting new bodywork with increased aerodynamics. An advanced engine management and fuel injection system with adjustable on-the-fly mapping. Fully adjustable high-performance suspension, and radial-mount brakes.

Delivering open-class racetrack performance in a middleweight-sized package. It’s as if the talented team of engineers responsible for the Suzuki GSX-R750 designed a racebike with street equipment like lights, instruments and a horn and mirrors. Which makes it more obvious what the Suzuki GSX-R 750 2008 really is. Not just a true race replica The original race replica, reborn.

New Engine

• New 32 bit ECM features 1024 kilobytes of ROM for maximum engine performance working in conjuction with the new S-DMS engine management system
• New clutch cover and oil pan feature new internal ribs for increased rigidity and reduced engine noise
• New electronic fuel injection system features Suzuki Dual Throttle Valve (SDTV) system – with dual fuel injectors per cylinder and new compact 8 hole, fine spray injectors for improved fuel atomization.
• New high volume Suzuki Advanced Exhaust System (SAES) with an innovative under engine chamber leading to a new large volume muffler with a new distinctly shaped triangular silencer
• New hydraulic cam chain tensioner automatically adjusts while reducing noise and mechanical losses.
• New Idle Speed Control (ISC) system for improved cold starting, consistent idle quality and reduced emissions
• New Ignition coil outer diameter is smaller for reduced weight and the starter motor uses new rare earth magnets for a compact lightweight design
• New larger 41mm ventilation holes between cylinders to reduce crankcase pressure and mechanical loss
• New S-DMS engine management system allows the rider to choose from three engine settings to match riding conditions with a handlebar mounted switch
• Under deceleration the back torque limiting clutch reduces pressure on the clutch plates for smoother downshifting and corner entry

New Chassis

• New electronically controlled steering damper uses a solenoid valve to move a tapered needle reducing or increasing oil flow to adjust damping force.
• New GSX-R750 fuel tank features an innovative new design and fuel capacity is increased to 17 liters
• New Inverted 41mm Showa cartridge front forks are fully adjustable for high and low speed compression, spring preload, and rebound damping
• New lightweight cast aluminum wheels featuring a new angled spoke design for improved rigidity, reduced unsprung weight and improved acceleration
• Radial mount four piston front brake calipers works with new thinner 310mm front brake rotors and a revised front brake master cylinder
• The 2008 GSX-R750 features a sharp new look utilizing a bold new headlight design, new angular tail section and compact overall layout

Engine Features

• Crankshaft and transmission shafts are positioned to create a compact engine design and the engine itself is rotated slightly forward in the chassis allowing for straighter and shorter intake and exhaust ports
• Crankshaft features forged steel construction and a secondary balancer shaft for reduced vibration at high rpm.
• Cylinder head with narrow valve angles creating a compact combustion chamber design, 12.5:1 compression ratio, large intake and exhaust ports for optimum intake and exhaust efficiency and new Iridium spark plugs
• High capacity large trapezoidal-shaped radiator provide efficient engine cooling – includes compact cooling fan assembly designed for improved air flow
• Lightweight forged aluminum alloy pistons with short skirts, cut away sides and an anti-friction surface finish along with shotpeened chrome-moly steel connecting rods for improved strength
• Lightweight titanium valves with steel alloy springs and aluminum spring retainers operated by thin-wall hollow camshafts to reduce weight and inertia
• SRAD ( Suzuki Ram Air Direct) force feeds cool, pressurized air into the airbox at highway speeds, improving engine efficiency and throttle response
• Updated Compact 4-stroke, 4-cylinder, liquid-cooled engine designed for optimum combustion efficiency and maximum power delivery

Chassis Features

• A braced aluminum alloy swingarm features a large 22mm swingarm pivot and is designed for optimum rider feel and maximum rear wheel traction
• Compact, lightweight instrument cluster features a step motor controlled analog tachometer, LCD speedometer, dual trip meters, clock and a convenient gear position indicator
• Innovative rear suspension linkage utilizes a forged aluminum alloy link and a forged aluminum link rod that reduces side loads and helps the rear shock absorber move in a smooth arc
• Showa 41mm aluminum alloy rear shock with a 16mm rod diameter are fully adjustable for high and low speed compression, spring preload and rebound damping for maximum rider control
• The lightweight frame is built entirely of aluminum alloy castings and is engineered to deliver optimum rigidity, unmatched accuracy and maximum cornering performance.
• Three way adjustable footpegs now feature die-cast construction and can be moved into three different positions with a 14mm horizontal and vertical range

Specifications

Chassis:
Brakes Front    Disc brake, twin
Brakes Rear    Disc brake
Color    Blue/White, Orange/Black, Black/Matte Black
Dry Weight    167 kg (368 lbs)
Final Drive    RK525ROZ5Y, 116 links
Fuel Tank Capacity    17.0 L (4.5/3.7 US/Imp gal)
Ground Clearance    130 mm (5.1 in)
Overall Length    2040 mm (80.3 in)
Overall Width    715 mm (28.1 in)
Seat Height    810 mm (31.9 in)
Suspension Front    Inverted telescopic, coil spring, oil damped
Suspension Rear    Link type, coil spring, oil damped
Tires Front    120/70ZR17M/C (58W), tubeless
Tires Rear    180/55ZR17M/C (73W), tubeless
Transmission    6-speed constant mesh
Wheelbase    1405 mm (55.3 in)

Engine:
Bore Stroke    70.0 x 48.7mm
Compression Ratio    12.5 : 1
Engine    4-stroke, liquid-cooled, DOHC
Fuel System    Fuel injection
Ignition    Electronic ignition (Transistorized)
Lubrication    Wet sump
Starter    Electric

What exhaust sounds best on a Suzuki GSXR 750?