wayland1985

I was chatting with one of the guys over at ARH the other day, inquiring about a true dual exhaust to combat the rasp I get above 2250rpm: and to my surprise he said that the problem isn't the Y pipe: it's the mufflers.

I know after searching here, it's accepted that true duals are the only solution.

I'm curious to hear if anybody has an ORY with a muffler that minimalizes the rasp?

LPE 403

iTrader: (6)

A well built Y-pipe (Flowmaster merge) will definately minimize the rasp....yes a muffler will help (Magnaflo, Corsa, Hooker, etc) Duals of course eliminate rasp entirely.

wayland1985

Maybe I'm mistaken the sound that's annoying me then. It starts to get rough and "braaaaapppppp" at that range.

I have a corsa muffler already, and the ARH ORY, which I thought was supposed to be one of the better pipes?

JOHNNY59

iTrader: (398)

my son's 02 camaro with LT's, ORY and loudmouth 1 catback had a terrible rasp at 2250-3000 rpm. replaced the resonator/muffler with a Borla XR muffler and now sounds great with no rasp!

HCI2000SS

iTrader: (2)

Well I'm going to dissagree. The y-pipe can cause a ton of rasp if the merge is crappy

wayland1985

Didn't I hear that ARH has one of the better merges though?

RevGTO

iTrader: (12)

I run a single exit Hooker Maxflow with an ORY with FM merge and have no rasp.

Fourth-Gen Man

No, true duels are not the only way to eliminate rasp.

SLP Powerflo catback will also get rid of all of the rasp.

I run the SLP Powerflo with the LMII in the i-pipe swapped for a Borla XR-1 and will never switch to anything else.

1 Slow WS6

iTrader: (1)

I also have the SLP Powerflo with a magnaflow in the I pipe. It muffled the rasp a lot but you could still hear it. A Flowmaster merge cured the rasp completely.

wayland1985

Is a flow master merge better than an ARH merge?

7SEALS

I had terrible rasp after I installed hooker long tubes with a texas speed catted y-pipe. I had an SLP loudmouth II after the y-pipe. I ended up pulling out the LM2 and put in some off brand muffler with super aggressive baffles. It eliminated rasp 100%. It might have killed a bit of flow, nothing really noticeable, but I was willing to do anything to stop the rasp.

You don't need to spend a ton a good muffler if you don't want to. I bought a borla muffler for ~$160 and ended up returning it because I didn't like the fitment. I actually never installed it so I don't know if it would have sounded good or not. I bought a $70 off brand and like I said, worked fantastic.

1970camaroRS

iTrader: (8)

3" dual, x-pipe, Magnaflow style straight through mufflers, dumped out the side...no rasp/resonance/annoying anything at any RPM.

mahone30

iTrader: (3)

Could just be too small of a muffler to reduce the sound, but most of what you hear is the rasp, which is why he said your muffler?

1 Slow WS6

iTrader: (1)

I've heard both through Loudmouths and I prefer the flow master merge. Found this thread for more info.

https://ls1tech.com/forums/generatio...cs-inside.html

bad_408_vert

iTrader: (6)

Corsa mufflers are raspy, after seeing pictures of ARH y pipes, it's very close to flowmaster merge.

It is your muffler. A borla muffler or magnaflow or hooker or Dynomax will do it justice.

1 Slow WS6

iTrader: (1)

if you thought it had rasp with the cats you should hear the TSP Y with out them, it's horrible!

black sky

iTrader: (3)

Currently I'm running ARH longtubes, ARH Y-pipe with high flow cats, hooker axle back exhaust, and hooker aerochamber muffler. No rasp and it sounds mean at WOT.

brutalzo6

iTrader: (12)

Which headers and y pipe are you running?

Fourth-Gen Man

Stock exhaust manifolds and stock Y pipe. (California).