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Good for occasional track use
clear sight windows allow for hassle-free filter inspection
1988-1989 Ford Bronco 4
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 Good for occasional track useThe 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.
