• Silicone diaphragm with Nomex reinforcement to withstand high temperatures.
• High grade, billet aluminum construction.
• Stainless steel rods and connecting clevis for corrosion resistance.
• Locking Collar design cap allows for quick spring changes.
• Ideal for use with any Turbosmart boost controller.
Bracket and Fitting Hardware, Pin Style Clevis End and Nut, Brown/Purple 7psi Middle Spring (installed).
Subaru WRX STi (2.5L) 2004-current (VF39, VF43, and VF48 turbo),
Subaru WRX (2.5L) 2009 - 2014 (VF52 turbo)
IMPORTANT EMISSIONS NOTE: This product does not have a CARB EO #; it is not legal for sale or use in CA on pollution controlled motor vehicles. This is intended as a "Race Only" product to be used solely for competition. It's use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization; any other use including recreational off-road use, may be a violation of local, state and federal laws. It is the buyer's responsibility to verify legal use of this product for the intended application and use.