BMW B58 / S58 Billet Engine Fluid Cap Set ActiveHybrid (F10) Transform your 2015+ Subaru STI

Transform your 2015+ Subaru STI with the MST Cold Air Intake System to experience enhanced horsepower

Not only are they restrictive

Up to 75bhp and 90ft-lb with bolt-on modifications

Transform your BMW G80 M3 or G82/G83 M4 with the Carbon Fiber OEM Style Mirror Caps by Palenon Performance

BMW B58 / S58 Billet Engine Fluid Cap Set ActiveHybrid (F10) Transform your 2015+ Subaru STIBundle and SAVE! Choose your color combo to dress up your engine bay! The Precision Raceworks Billet Engine Cap Set is a functional and stunningly stylish way to add a nice touch to any engine bay! These caps come in three color options so there is always a color that will work for you! Black with Billet, Black with Blue, and the Stealth series (all black). Many people don't realize it but the OEM caps have a pressure release valve built into them.