Stance XR1 Coilover Set Scion FR-S 2013-2016 testdelivery Tomei designed the headers to

Tomei designed the headers to be the 4-2-1 layout while being constructed of the highest quality stainless steel

This design builds higher torque than any other catback on the market while building the same horsepower numbers that are seen in most higher end catback exhaust designs

The operating temperature of the liner ranges from -65º to 325ºF

optimized for a more traditional LED experience and aftermarket bumper featuring a 4 inch round hole

so they may not be ideal for the daily driven Evolution

Stance XR1 Coilover Set Scion FR-S 2013-2016 testdelivery Tomei designed the headers toPart #: STA ST ZN6 XR1 Originally designed for use in professional motorsports, inverted monotube technology has many advantages over upright monotube dampers. Our 45mm strut shaft offers increased lateral rigidity over competitors upright dampers that use 20mm shafts. If the shaft is not stiff enough it can cause the damper to bind under heavy loads and limit the suspension travel leading to premature wear on the shaft seals & piston bands, causing