Fabtech 11-19 GM C/K2500HD/3500HD 4in Ultimate System w/Perf. Shocks Suspension>Shocks and Struts 7-1/2" tall inverted top conical

7-1/2" tall inverted top conical 360 degree radial flow performance air filter with 5-layers of progressively finer mesh cotton gauze oiled media and is constructed with 100% polyurethane frame for long life and multiple cleaning cycles

This system features a high-flow 409 stainless steel muffler and a tuned helmholtz resonator

The high torque generated by the Mustangs revealed a fatal flaw in the OEM design

The Mishimoto cold-side pipe is made right here in the USA and is constructed of mandrel bent aluminum with a polished finish

8 Liter F4M21-1

Fabtech 11-19 GM C/K2500HD/3500HD 4in Ultimate System w/Perf. Shocks Suspension>Shocks and Struts 7-1/2" tall inverted top conicalFabtechs development capabilities are second to none with over 20 years of experience in aftermarket suspension design. State of the art software, fabrication equipment along with our seasoned engineers and fabricators allow the company to develop products that are constantly on the cutting edge. Fabtech has received numerous awards for our designs that continue to lead the market. Proper design in suspension development is key in providing a quality,