Stage 4 heads feature extensive port work on the intake and exhaust and +1mm Ferrea valve, spring and titanium retainer package.

Stage 3 heads feature extensive port work on the intake and exhaust and +1mm Brian Crower valve, spring and titanium retainer package.

Stage 2 heads feature extensive port work on the intake and exhaust and a JWT spring and retainer package.

Stage 1 heads feature extensive port work on the intake and exhaust.

This is our single turbo system for the Infiniti G35.We wanted the ability to make horsepower so we decided to use a full sized T4 turbo. A Precision T67 turbo with a T4 exhaust housing was chosen to handle the duties of compressing the air.

This is our single turbo system for the Infiniti G35.We wanted the ability to make horsepower so we decided to use a full sized T4 turbo. A Precision T67 turbo with a T4 exhaust housing was chosen to handle the duties of compressing the air.

This is the tuner version of our twin-turbo system for the G35.It comes with everything you need to bolt on this turbo system.It does not come with engine management,injectors or fuel system upgrades.

Now you can have a dyno proven 476 horsepower at the wheels out of your 350Z/G35 on a completely stock motor! Imagine 571 horsepower at the crank?

S2 CAM SET FOR VQ35DE & VQ40DE. JWT S2 BILLET CAMS ADD 15+HP WHILE MAINTAINING EXCELLENT DRIVABILITY AND IDLE QUALITY

Speed Force Racing is proud to offer the Haltech Platinum series Plug and Play EMS for the 2003-06 Nissan 350z and Infiniti G35. This is the EMS system that you want to tune your G35 or 350Z with.With the ability to accept dual wide-bands and exceptional control of the engine, you cant go wrong. 

This is a complete package which comes with everything needed to bolt the SFR twin throttlebody, twin plenum intake manifold onto your 350Z or G35.We provide you with the plenum,extra throttlebody,Coolant/power steerring/oil catch can, throttlebody driver box and harness and second OEM throttlebody as well as the vanity cover to help clean up the engine even further.

In our pursuit for perfection, we quickly realized the the intake manifold on the VQ35 motor was not ideal for maximizing power.It comes in multiple pieces and is very restrictive.

There are no reducer hoses and multiple parts and pieces to deal with.We also developed a cold air intake for N/A cars.It is a 3" aluminum intake pipe which has the mass-air sensor built right in.

Another benefit of our turbocharger system is the headers.We use specially designed 304 stainless steel equal length exhaust manifolds.

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!

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. In order to run safely past 400-450WHP, an upgraded bottom-end with forged internals is a must.

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.

These bolt-on headers for your G35/350z 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!

These are the newest and best headers to be released for the G35 to date!They utilize Burns stainless Merge Collectors and equal length runners.

Speed Force Racing is now offering dual 2.5" and 3" exhaust systems for the 350Z and G35.These systems are made out of 2.5" or 3" mandrel bent 304 grade stainless steel.