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Speed Force Racing can take your stock automatic transmission that is barely capable of withstanding 400WHP and turn into an incredible transmission that can withstand 750WHP!The secret is the use of 25% more aftermarket clutch packs.
Stage 2 heads feature all of the work of the stage 1 heads except a JWT valve spring and titanium retainer package is used to replace the stock springs and retainers
Stage 3 heads are the best flowing cylinder heads you can buy for your Z or G. They feature 1mm oversize stainless Ferrea valves with the Ferrea race spring and titanium retainer package.
Stage 1 heads feature extensive port work on the intake and exhaust. We utilize stock valves and springs which are inspected and tested to meet factory specifications.
These bolt-on header upgrade for oyur Speed Force Racing Single turbo system for your
Altima are the last component in the exhaust system that must be addressed.We have seen as much as 15 horsepower at the wheels with these bad boys.Ask us about these in 321SS!
This is the SFR version of the high-flowing y-pipe for the G35/350Z. It utilizes a special slip-fit merge collector which has been proven to increase flow and velocity which translates into horsepower and torque whether you have an N/a car or and FI car.This y-pipe will outlfow any other y-pipe on the market! You can also get this in a 3.5" outlet instead of the 3" which comes standard.
SFR also offers an affordable 3" single exhaust.This is a 3" system that starts off at the Y-pipe and exits out the left side of the rear bumper.It is perfect for single turbo systems.Getting the air into the motor is easy.Getting it out is even easier with the Speed Force Racing exhaust system.
These engines are capable of withstanding 1000+WHP.Now you can buy a professionally assembled, balanced and bluprinted, Darton MID sleeved short block with Arias pistons and Pauter rods that is capable of handling in excess of 1000WHP!
In order to run safely past 400-450WHP, an upgraded bottom-end with forged internals is a must.You get your choice of compression ratios ranging from 8.6,9.2,10.5 or 11.5 to 1 depending on whether or not you are going forced induction or keeping it all motor.
Getting the air into the motor is easy.Getting it out is even easier with the Speed Force Racing exhaust system.We offer a Y-pipe back exhaust featuring twin Borla,Magnaflow or Burns mufflers.
Now you have many options if you are in the market for a dual exhaust system.We developed a way to offer all of our free-flowing exhausts stemes with a variety of muffler options.This makes the SFR exhaust system the most versatile system on the planet.You have your choice of HKS,Burns,Borla or Magnaflowor even our own TIG welded 304SS SFR mufflers.
Speed Force Racing builds a variety of hi-flow exhaust systems for all G35's and 350z's.We build our systems utilizing the highest grade T304SS tubing available.#
These are the newest and best headers to be released for the 350Z to date!They utilize Burns stainless Merge Collectors and equal length runners.
ARP L19 headstus for the VQ35 are the best studs available without expensive machine work required for using even larger diameter studs.
Another benefit of our turbocharger system is the headers.We use specially designed 304 stainless steel equal length exhaust manifolds.