mbarnes Posted May 23, 2010 Report Share Posted May 23, 2010 so heres the story. when i first got my truck i took it to the local shop and had my stock muffler cut out and two magnaflows put in and it sounded great almost 5.0 like. then of course i got the bug to keep modding the truck and got a set of pacesetter lts. i put them in and cut out the cats. it sounded like chit really poppy and raspy. so i cut off the tail pipes and dumped the magnas at the muffler. this got rid of 90% of the rasp but still not great sounding. so a friend of mine gave me a set of 40 series flowmaster that he had on his racecar. i cut off the magnas and replaced w/ the flowmasters. now ive finally got the sound ive been wanting. sounds great w/ the lope of the cam at idle and nice and deep at acceleration. no popping at shift changes and the rasp is all gone. the only down side is i have quite a bit more in cab noise w/ the flowmasters which doesnt bother me at all. just thought id put this out there for all the others who are not happy w/ how thier exhaust is set up. Quote Link to comment Share on other sites More sharing options...
sierra ss Posted May 23, 2010 Report Share Posted May 23, 2010 Got a sound clip? Ive always had flowmasters and love them. Mines run out before the rear tire and have no drone. But im thinking about trying something new. Quote Link to comment Share on other sites More sharing options...
tawss04 Posted May 23, 2010 Report Share Posted May 23, 2010 I had flowmasters (3" 44 series) with no cats and pacesetters and it sounding awsome. It resinated in the cab to bad because the idiot I had run my exhuast out the rear had cut them off and moved the mufflers under the cab. So I took them off and installed a Gibson cat back system. It has the raspy sound you were talking about, I dont like it either and going to put go back to the Flowmasters but installed the way I want them done, Quote Link to comment Share on other sites More sharing options...
JSTAL Posted May 23, 2010 Report Share Posted May 23, 2010 change it back slow masters hurt the bottom end. magnaflow or corsa is about the only way to go to improve performance Quote Link to comment Share on other sites More sharing options...
70chevy03ss Posted May 23, 2010 Report Share Posted May 23, 2010 Ditched my my flow crapper for a dynomax X flow. Better sound and more responsive. But hey its your truck!!! Post up a sound clip Quote Link to comment Share on other sites More sharing options...
jc06VMAX Posted May 23, 2010 Report Share Posted May 23, 2010 i love my flowmasters on my truck, but they do kill bottom end performance. i'm not at the track every weekend and i'm not trying to crack into the 11s, so really no need to switch for me. lets hear a clip though Quote Link to comment Share on other sites More sharing options...
mbarnes Posted May 23, 2010 Author Report Share Posted May 23, 2010 ill try to get a sound clip up soon. as far as the bottom end i cant tell a difference i really cant see a set of mufflers having that much effect on the bottom end thats what the stall if for anyway. Quote Link to comment Share on other sites More sharing options...
1sik02 Posted May 25, 2010 Report Share Posted May 25, 2010 funny everyone says that flowmasters kill bottom end, when i had all my mods and had my flowmasters, i would nail the accelerator and truck would fall flat on its face, i upgraded to a 3" round 14" magnaflow and gained it all back, then i had a lot of friends in the performance mods tell me to run the dynomax cuz its dyno proven, i was about to go dynomax, but got some corsa instead. best exhaust ive ever had in my life, id go with corsa in everything i ever own now, hands down Quote Link to comment Share on other sites More sharing options...
2bfast Posted May 25, 2010 Report Share Posted May 25, 2010 funny everyone says that flowmasters kill bottom end, when i had all my mods and had my flowmasters, i would nail the accelerator and truck would fall flat on its face, i upgraded to a 3" round 14" magnaflow and gained it all back, then i had a lot of friends in the performance mods tell me to run the dynomax cuz its dyno proven, i was about to go dynomax, but got some corsa instead. best exhaust ive ever had in my life, id go with corsa in everything i ever own now, hands down Corsa's top notch shit. Quote Link to comment Share on other sites More sharing options...
kcsilveradoss Posted May 25, 2010 Report Share Posted May 25, 2010 Corsa's top notch shit. Indeed Quote Link to comment Share on other sites More sharing options...
12'SROCK Posted May 27, 2010 Report Share Posted May 27, 2010 Thats weird.. usually everyone switches from FM to MF... I can't stand the way FM sounds on LS engines. I guess its personal preference. Quote Link to comment Share on other sites More sharing options...
SSpower44 Posted May 31, 2010 Report Share Posted May 31, 2010 funny everyone says that flowmasters kill bottom end, when i had all my mods and had my flowmasters, i would nail the accelerator and truck would fall flat on its face, i upgraded to a 3" round 14" magnaflow and gained it all back, then i had a lot of friends in the performance mods tell me to run the dynomax cuz its dyno proven, i was about to go dynomax, but got some corsa instead. best exhaust ive ever had in my life, id go with corsa in everything i ever own now, hands down corsa sport or touring? Quote Link to comment Share on other sites More sharing options...
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