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Re: Magnaflow XL mufflers - yay or nay?
Loss of back pressure will cause power loss. IMO it's the 2.5" change, not the muffler. .. but it could be the free flow design of the Magnaflow that contributed to it too. Regardless of what muffler you chose if it has a free flow design (Flow Master, Borla, Magnaflow, Spin Tech) it would have done the same thing. Just my .02
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Chad
1967 C10 SWB - Project Savannah - 6.0/4L80 *Currently underway*
1968 C10 SWB - TOTY 2018, 50th Anniversary Tribute Project * Sold * Pride and Joy
1986 Silverado Short Fleet - Scarlet *Sold*
1985 Silverado Short Fleet *Sold*
2022 Jeep Gladiator Mojave
2001 Jeep Cherokee XJ 4x4 - Lifted, Built
1992 Jeep Cherokee XJ 4x4 - Lifted
2013 Honda Accord EX-L v6 Coupe 6spd (wife's ride)
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