XR-1 Raceline - Sportsman Muffler 1987-pontiac-firebird-esi3246161 120” steel sleeve that is

120” steel sleeve that is TIG welded and sanded in place

BMRs Polyurethane Motor Mount Kit (MM550) reduces engine deflection and is designed for street performance

It uses a double sheer mount to the crossmember with a greasable Delrin bushing for smooth

This results in a significantly more aggressive stance and improved traction and performance

This is just another reason BMR

XR-1 Raceline - Sportsman Muffler 1987-pontiac-firebird-esi3246161 120” steel sleeve that isCompact size is perfect for applications with limited space. Reversible design for installation flexibility. High quality T 304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High temperature continuous filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Hands down, Borla(r)'s XR 1 race line parts