GrimmSpeed Sound Generator Plug, Red for 2015-2017 Subaru WRX STI (125016) 8021 0 1992 Porsche 968 Engine:

0 1992 Porsche 968 Engine: 3

Designed and Tested with Factory Electronic Damper Systems

System also features BORLA's Polyphonic Harmonizer Technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust Notes that harmonize to deliver a clean

Unique Air Filter To Housing Interface

it can't be returned for sound reasons

GrimmSpeed Sound Generator Plug, Red for 2015-2017 Subaru WRX STI (125016) 8021 0 1992 Porsche 968 Engine:Simplify your 2015 17 STI engine bay with The GrimmSpeed Sound Generator Plug Kit. The stock sound generator is an unnecessary system that contributes to a cluttered engine bay and can give an unwanted, artificial sound inside of the car. The problem with getting rid of this clunky setup is that youandrsquo; re left with a hole in the intake tract. The GrimmSpeed Sound Generator Plug Kit is your solution. This piece is a high quality machined,