The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Magnaflow XL mufflers

findog78 · 04-29-2014, 01:52 AM

I went from a 2.25 straight dual system and installed a new 2.5 with X pipe and a set of XL mufflers exiting in front of tires. Sounds good at an idle but I swear I lost power like Im missing a gear now? Not sure wtf? Could it be from going from 2.25 to 2.5 diameter or is it the muffler? Anybody else using these mufflers experience the same?

04-29-2014, 01:52 AM	#1
findog78 Registered User Join Date: Dec 2009 Location: Puyallup WA Posts: 60	Magnaflow XL mufflers - yay or nay? I went from a 2.25 straight dual system and installed a new 2.5 with X pipe and a set of XL mufflers exiting in front of tires. Sounds good at an idle but I swear I lost power like Im missing a gear now? Not sure wtf? Could it be from going from 2.25 to 2.5 diameter or is it the muffler? Anybody else using these mufflers experience the same?