If there needs to be a how to. Basically you just remove the stock exhaust and put the new one on. It may need an extending pipe depending on the muffler. Then just weld and if you want it out the side just cut and weld out the side. ( I have it out the side). But I did mine myself with my buddy.

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my lil prerun run... tires and junk cool tube bumpers, fiberglass, cool colored lights, loud bass and a tire rack so you know im cool