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i am needing a new muffler my pip is 3" stock i think. i found a semi used 40series flowmaster thats 2.75 od would this hurt my truck or would it be ok i plan on dualing it in about 2 months with the 2.75 size but can i down size the muffler for now
Pretty much anything post cats isn't going to gain you much performance. What might gain you performance is just running correct sized pipe post cat or a straight through glass pack / muffler.
Bah, just straight pipe the beast. Let the world know you're comin'!
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.