Fabspeed 911 Carrera Supercup Exhaust System (76-89) (FS.POR.911.SCUPS30) 1585 GrimmSpeed take pride in our

GrimmSpeed take pride in our products and the name that stands behind them

stronger flexplates meant thicker flexplates

They also provide outstanding filtration to meet or exceed all OEM specifications

We have developed a complete system from front air scoops to filter housings and even inlet tubes to the turbos

give you a subtle enhancement that's not too over the top

Fabspeed 911 Carrera Supercup Exhaust System (76-89) (FS.POR.911.SCUPS30) 1585 GrimmSpeed take pride in ourThis racing inspired exhaust system replaces the restrictive factory muffler with a free flowing resonated design to immediately bring out the roaring sound of the 3. 0L 3. 2L engine. SOUND: The Fabspeed Supercup Exhaust is the loud and proud system that's aggressive enough that we recommend it for track use only. FEATURES: Fits all Porsche 911 Carrera Vehicles 1976 1989 Very aggressive muffler bypass type system which incorporates two resonators to