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Reviews
Mike Savage says: I had these on my 02 Z06 and they are loud! But they sound so so good. Nothing sounds better than an uncorked LS6 at WOT with this exhaust. The fitment was perfect and build quality is excellent. The ..
5 of 5 Stars!

kasey Mullenioux says: I drive an '07 Z car and the car handles GREAT for a drop on springs. F1.0" R1.0" drop was decent. For people running 19's i would suggest the PRO-KIT, however for people running 18's i would suggest ..
5 of 5 Stars!

Les Carter says: I just received these today. I panicked because the sticker from Cosworth says SB0006 Main Bearing set EJ25. Per this website, it is for the EJ20 and EJ25. I will let you know if they fit my EJ20. ..
4 of 5 Stars!

David Beagle says: I had a problem with my BMW 325i race car with fuel starvation using a Porsche pump (Bosch) mounted outside of the fuel cell. I installed a Walbro GSS340 and it solved the problem immediately. I used ..
5 of 5 Stars!


SPEC Aluminum Flywheel Audi S4 2.7L 99-02
  Product Information
Price: $499.00   Sale: $464.07
  Model: SA26A
  Reviews: (1)  
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1.480.966.3040    Click for Live Support
Product Information
The automotive component most responsible for insuring optimum clutch performance and life is the flywheel. The flywheel;s contribution to power transfer is three-fold.

Firstly, the flywheel should provide a consistent and friction enhancing surface for the clutch disc. Flywheels also aid in proper inertia, which is determined by the flywheel weight. Inertia controls the ratio of power to acceleration and can make a vehicle faster or slower based on gear ratio, tire type, vehicle weight, power output and even the location in the powerband output is achieved. The weight of a flywheel and amount of inertia it provides can also effect drivability. Lastly, the flywheel must provide a true balance at rpm, which means no dimensional runout that produces engine damaging and power robbing vibrations and allows smooth engine revolutions.

SPEC flywheels are CNC manufactured at an unheard-of .001 tolerance, in an industry where the standard is .010. This precision manufacturing process ensures perfect balance and a perfectly flat bedding surface for the clutch disc, both of which also contribute to the ultimate in safety for competitive environments. All SPEC flywheels carry SFI certification. (sfi link)

To allow for specific inertia needs, SPEC flywheels are made in high carbon billet steel and aircraft quality billet aluminum. The aluminum and most steel SPEC units are rebuildable and feature a replaceable steel friction plate that is made from a friction- enhancing steel metal specially formulated for optimum clutch bedding and holding power. The aluminum and steel materials provide a light and medium weight option for all types of racing. SPEC spends a lot of time and effort on research and development of optimum flywheel dimensions and weights for all types of driving and racing and can optimize your MOI (moment of inertia) to maximize your car;s output and performance.
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About Manufacturer: SPEC Clutch
SPEC offers thousands of applications, seven stages of performance kits, up to eight stages of multidisc, stock appearing and billet lightweight clutches and the only flywheels on the market manufactured to a .001 machine tolerance.

SPEC Store | SPEC Clutches | SPEC Flywheels


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