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I have a 4" magnaflow and am very happy with it. Sounds good when towing and it doesn't bother me one bit. I drive a lot and carry weight so I kept the muffler on there to be sure it wouldn't be to loud but a lot of these guys jhust run the pipe itself.
do you have to modify anything else in order to run these exhaust systems?
Nope they just bolt up. There might be clearence issues with the bolts on the trans crossmember but thats it.
Originally Posted by Powerstrokedlariat
NO, just bolt up. No need for a muffler, or cat on these engines. They dont need either one darn bit.
it sounds ALOT better straight piped.
Originally Posted by jerrytown2001
well i bought a 4 inch off of ebay. it is a diamond eye brand and cost 299.99 free shipping. going to install tomorrow.
That sounds like a good deal. Is it stainless steel? If you live somewhere where they use a decent amount of salt on the roads you would be better off with stainless.