GrimmSpeed Downpipe Donut Gasket - 02+ WRX, 04+ STI, LGT, FXT, OBXT (020099) 1116 B/D/H 91-01 (22S-01-0750-4)

B/D/H 91-01 (22S-01-0750-4)

Adjustable 0-65 PSI

Special Comments: Brake lines for ABS 2010 Ford Mustang Engine: 4

Single Passenger Side Rear Exit

BORLA(r)'S Polyphonic Harmonizer Technology utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean

GrimmSpeed Downpipe Donut Gasket - 02+ WRX, 04+ STI, LGT, FXT, OBXT (020099) 1116 B/D/H 91-01 (22S-01-0750-4)Downpipe Donut Gasket (020099) by GrimmSpeed. 1 Piece. GrimmSpeed OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi layer steel OEM style gaskets. The issue with the OEM gaskets is that they are very expensive for what you get. Well Grimmspeed has your answer, premium multi layer steel w stainless steel fire ring gaskets at a great