Shop by car: Mazdaspeed 6 Mazdaspeed 6 Race Pipe (MS6-RP) US$139.00 This part replaces the 2nd catalytic converter on your 2006+ Mazdaspeed 6. It is made out of 3 inch Stainless steel with thick CNC machined flanges for a leak free installation. All new gaskets and hardware are included to ensure easy installation. This pipe will not trigger any CEL's, just large grins from the +10 horsepower/+10 ft-lbs torque gains! Mazdaspeed 3 & 6 Hybrid Blow Off Valve (MS3-HYB) US$229.00 TurboXS releases the first Hybrid Blow Off Valve designed specifically tuned for the Mazdaspeed 3 & 6. The valve features an innovative re-circulation and vent to atmosphere operation. It has been tuned to offer the best blend of vent to atmosphere and re-circulation without check engines lights, stumbling or the dreaded back fire issues that are commonly associated with Blow OFF Valves and turbocharged cars that use Mass Air Flow configurations. Each kit will bolt directly to your Mazdaspeed without any additional parts. MS3-H-RBV (MS3-H-RBV) US$219.00 TurboXS releases the first full factory replacement re-circulating bypass valve designed specifically for the Mazdaspeed 3 & 6. It offers a direct bolt on capability without the hassle of universal adapter kits. Each flange is beefy to keep it from warping and allowing you to have the best mating surface possible. Exceptional performance gains are found by holding boost higher to redline and allowing your turbocharger to operate more efficiently. If pure function over noise is your goal this is the valve you need. KnockLite (KNOCKLITE) US$129.00 Detonation or "knocking" can destroy an engine in no time flat leaving you with a repair bill that can cost you thousands of dollars. So how do you KNOW that you are knocking BEFORE it's too late? The TurboXS KnockLite (TM) will detect even minor, inaudible detonation and flash the multicolored LED to alert you to the knock so that you can do something about it before it's too late. The KnockLite is a must-have product for anyone that is modifying their engine for more power. The KnockLite wires into either your factory knock sensor or into separate knock sensor (sold separately) that is mounted to your engine block. As an added bonus, the KnockLite also comes with a programmable shift indicator. So why drive around hoping that your engine isn't knocking? Drive with confidence with the TurboXS KnockLite! Tuner REG System, VW O2 sensor (Tuner-VW) US$399.00 This low cost, high performance air fuel ratio data logging unit is most efficiently used in conjunction with a UTEC or Dtec, but can be used as a standalone device.