HELP! Just installed lt's and car sounds horrible!
08-08-2006, 06:00 PM
#21
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I had a Flowmaster on mine for a little, and it sounded like complete ****. The rasp was unbearable. I went back to my stock catback, and it sounds way better. And I put down 342/347 thru the stock catback with just a lid, lt's, and an ory, so it's not flowing too bad.
BOSS APPROVED!
08-09-2006, 02:42 AM
#24
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Seems like uncatted LS1s sound like garbage with a Y pipe, unless you got a really nice catback like a Corsa or a Borla. I dunno I have True Duals with no cats and it sounds fantastic. Although it sounded to loud for the first week, give the computer some time to realise what you did.
08-09-2006, 02:49 AM
#25
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i have the flowmaster 50series. granted yall have about 24 more cubes than me mine was not raspy at all. though it ran like 
sounded good, to check for an exhaust leak hold your hands near the gasket on the headers and try and feel for air coming out or around all the welds and stuff. a leak would definitly give it a nasty sound.
sounded good, to check for an exhaust leak hold your hands near the gasket on the headers and try and feel for air coming out or around all the welds and stuff. a leak would definitly give it a nasty sound. 
08-10-2006, 06:45 PM
#28
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all ls1's have rasp when you put longtubes on with no cats i would get a new y pipe with cats and try slp dual dual if you want to be quiet or get borla if you want to be louder........ if you thunk your rasp is bad you should take a listen to my car i have edlebrock long tubes y pipe and loudmouth with my setup...........i love it
08-10-2006, 06:46 PM
#29
I am gonna get a clip up this weekend. You guys prob have never heard a duck call exhaust! 
Turns out it wasn't rasp it's just the sound the stock muffler makes with headers and ory 
. I need to hear some cars with headers and a catback to make my descion now. I have checked ls1sounds a million times and can't make up my mind. I am in love with the trans am with the gmmg and headers!
Turns out it wasn't rasp it's just the sound the stock muffler makes with headers and ory . I need to hear some cars with headers and a catback to make my descion now. I have checked ls1sounds a million times and can't make up my mind. I am in love with the trans am with the gmmg and headers!
08-10-2006, 07:14 PM
#30
Originally Posted by sprydncamd ta
all ls1's have rasp when you put longtubes on with no cats i would get a new y pipe with cats and try slp dual dual if you want to be quiet or get borla if you want to be louder........ if you thunk your rasp is bad you should take a listen to my car i have edlebrock long tubes y pipe and loudmouth with my setup...........i love it
08-10-2006, 08:14 PM
#31
Originally Posted by sprydncamd ta
all ls1's have rasp when you put longtubes on with no cats i would get a new y pipe with cats and try slp dual dual if you want to be quiet or get borla if you want to be louder........ if you thunk your rasp is bad you should take a listen to my car i have edlebrock long tubes y pipe and loudmouth with my setup...........i love it
08-10-2006, 08:41 PM
#32
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Hooker Aero Chamber muffler and weld it in place of the stocker. If you have the extra cash, get the hooker cat back. Don't get me wrong, I love my duals and X pipe, but the Hooker cat back sounded really good also. Very little rasp with Hooker LT's and ORY. My old cat back is now on my uncles 02 Ram Air TA with the same set up and he loves it.
08-11-2006, 12:26 AM
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I have Flowmaster, it doesnt sound to bad at all with the cut-out closed. Not really raspy at all. A pretty nice deep sound. Not saying its the best by any means, but not at all the way people are saying its "raspy". It sounds good, but nothing compared to when the cut-out is open at WOT.
Last edited by Camaro Z; 08-12-2006 at 05:10 PM.
08-11-2006, 01:47 PM
#39
Originally Posted by smg267
everyone running the flowmasters what series are you using. I know there are a million someone told me to run the 80 series.? I want a good mellow tone but nothing ridiculous. My dad got a flowmaster muffler swapped on his ws6 and it sounds a million times better than my headers! I have no idea what series he got on though meinke did it.
80 Series Crossflow here with LT's and no cats. Sounds good, but I am starting to get some resonance. Thinking of going to TD's.
