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5" lowering capability
This results in a significantly more aggressive stance and improved traction and performance
The spherical rod end setup eliminates rear end bind
chrome-moly
120” steel sleeve that is TIG welded and sanded in place
XR-1 Raceline - Sportsman Muffler 1987-pontiac-firebird-esi3246161 5" lowering capabilityCompact 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
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