LSWONCOOP

iTrader: (5)

Hey guys, my mods are listed below. I'm wondering what the culprit is for the rasp I'm hearing so much of. Is it the Magnaflow or do I need cats or a Flowmaster Merge? I've thought about ditching it from the headers back and getting TSP true duals but I like having the exhaust all the way out the back. Any suggestions on how to get the rasp out of my current set-up?

Thanks!

HAZ-Matt

iTrader: (8)

Probably a little of both. You could try improving the merge and either adding a bullet muffler in the I pipe or adding high flow cats.

conor.davis

iTrader: (20)

I'd start with a good merging Y, then if your still not happy throw some cats on.

LSWONCOOP

iTrader: (5)

I might just buy the TSP Y-pipe with high flow cats. It has a good merge on it too.

LSWONCOOP

iTrader: (5)

Actually, it would be considerably cheaper for me just to sell my barely used Magnaflow catback and ORY and switch to the TSP true duals. Decisions, decisions...

Blackhawk777

The duals only really add to the sound quality of the exhaust, and MAYBE 1-2 more hp over a good Y pipe/catback setup. If it is truly more cost effective for you to ditch the Y for true duals, go for it, otherwise I wouldn't bother.

LSWONCOOP

iTrader: (5)

OK, cool. Sound quality is really all I'm concerned about anyway at this point.

libertyforall1776

iTrader: (2)

I dunno, looks better than most, but still average:

LS199CAMAROZ28

iTrader: (32)

If you go with the duals make sure its really what you want. Yea they sound good and make power. But they are loud, even louder with heads and cam. I had to go back to a y-pipe setup.

If you DD the car I would modify what you have. If you don't and just want the best sound go duals. Be honest with yourself.

BTW. I have a custom y with magnaflow cats, flowmaster merge and magnaflow catback. Sounds good with no rasp.

KurtRardin

iTrader: (11)

My flowmaster merge helped a little, but I think that rasp is just a phenomenon that comes with the Fbody in generall, unless you get duals. Every Fbody that I've heard, from LT1 to LS1 has had a similar sound when they're reved up. It might not be a definite tone similarity (as mufflers and different exhaust combos tend to add their own flavor to the note), but you can hear a definite similarity. I personally think that the raspy side of an Fcar is caused by the single pipe going over the axle with all the bends and curves associated with going into a sideways muffler and then being split into two different exits.

If you listen to a true dual car then you can't hear the Fbody noises anymore... and unless they did a bad job of picking TD components then they're usually rasp free.