Invidia [08-14 WRX, 08-21 STI] High Flow Cat w/ Extra 02 Bung Downpipe Featured Products PLM Billet Valve Cover –

PLM Billet Valve Cover – Honda B-Series B16 / B18 / B20

If you've ever looked inside an intake manifold

Installation Note:

they’re perfect for show use or replacing worn-out headlights

Invidia [08-14 WRX, 08-21 STI] High Flow Cat w/ Extra 02 Bung Downpipe Featured Products PLM Billet Valve Cover –Invidia offers both catted and catless divorced style downpipes that are designed with a separator plate between the turbine and wastegate exhaust streams. Divorced style downpipes reduce exhaust turbulence for exceptional exhaust flow and performance. Every Invidia downpipe features 3" diameter stainless steel piping, 1 2" thick flanges, and a cast upper mouth section. Please note that without engine management such as the Cobb Accessport, a catless