Vibrant TurboFlex Coupling w/ Interlock Liner, 2.25" I.D. x 6" Long - 60706 3/8" The OEM Coolant Overflow Tank

The OEM Coolant Overflow Tank for the 2008-2014 WRX/STI does its job well enough but the cheap plastic material is ugly and will potentially crack over time

This 2010-2016 Audi S4 thermostat includes an OEM-quality housing for a perfect fit and

600140-02 is a flywheel kit for various Mazda RX-7 and RX-8 applications that comes complete with an ACT counterweight

increasing the inlets to 2" and outlet to 3" for a 51% boost in flow straight out of the turbos

Direct fit for 2015+ Ford Mustang EcoBoost

Vibrant TurboFlex Coupling w/ Interlock Liner, 2.25" I.D. x 6" Long - 60706 3/8" The OEM Coolant Overflow TankVibrant Performance TurboFlex Couplings feature an internal Stainless Steel Interlock Liner to facilitate smooth flow and also protects the bellows from direct exposure to high temperature exhaust gases. Recommended for all high flowing, high temperature applications (e. g. forced induction).