Cobb Fuel Pressure Regulator Kit - 2015-2021 Subaru STI tuning Many upgrades to the turbocharging

Many upgrades to the turbocharging system (such as larger turbochargers and external wastegates) require the increased performance

riveted double-pipe diffuser design to reduce surface temperatures and produce a striking heat gradation appearance

Verify clearance if your car is equipped with an aftermarket FMIC system

Reduce Lap Times

and methanol

Cobb Fuel Pressure Regulator Kit - 2015-2021 Subaru STI tuning Many upgrades to the turbochargingThe COBB Subaru 15+ STI Fuel Pressure Regulator Kit is a plug and play solution that is simple and easy to install. It requires no cutting of factory hoses and is multi fuel compatible. This kit includes the fuel pressure regulator manifold reference relocation kit. Attention: Custom tuning required, find a Protuner near you. Why? Are you annoyed with that 2800 rpm stumble you get while driving your 2015+ Subaru STI? Wish you could easily fix it? COBB