aFe MACH Force-ST 1.25 IN 304 Stainless Steel Exhaust Tuning Insert 1991-nissan-pathfinder-esi2304025 The integrated T-fittings remove the

The integrated T-fittings remove the need for brittle plastic connectors

1988-1989 Ford Bronco 4

this roll will only get worse

this kit allows for expansion

The entire system weighs ten pounds lighter than the stock system

aFe MACH Force-ST 1.25 IN 304 Stainless Steel Exhaust Tuning Insert 1991-nissan-pathfinder-esi2304025 The integrated T-fittings remove theThe ST Sound Core is a patent pending technology from aFe, compatible with MACH Force ST and Takeda ST exhaust systems . With this technology, you can easily modify the sound and tone of your exhaust system. By placing the ST Sound Core in between the two stepped V band flanges in the exhaust system, you can control the amount of flow that is bypassing the muffler, and change the overall tone of the exhaust with the unique reflection chamber design.