ProXS Muffler - Un-Notched NeckCompact 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.

The entire kit is assembled with low deflection

and zerk grease fittings for optimal performance

It is a direct bolt-on replacement aimed at reducing wheel hop

These lighter springs reduce unsprung weight and react faster

If you drag race your S197 Mustang

1-1/4-inch

fuel economy

Introducing the UMI Stage 1

sporty sound without adding any drone inside the vehicle to ensure an enjoyable driving experience

Features on-car adjustability for additional clearance and centering aftermarket rear ends

22 hrs 350 degree F 4 percent

off-road and towing applications