exhaust rasp - HELP

[xtreme prelude]

Hello everyone

iv got a V6 2010 camaro, just finished getting long tube headers installed, already had a cat back system. not the car is loud and has a major annoying rasp when accelerating. cruise is nice and smooth.

need some suggestions.

i was thinking of installing 2 Vibrant ultraquiet resonators, or 2 Twister race mufflers.

what would you recomend, even something different would be great as long as it works.

i really dont want to have to put the stock headers and cats back on but it may be the only way.

sugestions please.

[benyl]

Aero turbine resonators

[JRSC00LUDE]

What kind of "rasp"? Sounds to me like a broken flex pipe or a vibration somewhere from something rubbing when the engine "flexs" on its mounts under load.

[xtreme prelude]

nothin is hitting, its not drone, it is definitely rasp, like a high frequency raspy exhaust not but only between 2-3500 rpm, after that its just loud. the loudness isnt soo bad but the rasp is nasty. like a bunch of bees trying to explode out the ass of the car.

[xtreme prelude]

Originally posted by benyl
Aero turbine resonators

whats the benifits of the aero turbine resonators? are they any different than other resonators?

[JRSC00LUDE]

Originally posted by xtreme prelude
nothin is hitting, its not drone, it is definitely rasp, like a high frequency raspy exhaust not but only between 2-3500 rpm, after that its just loud. the loudness isnt soo bad but the rasp is nasty. like a bunch of bees trying to explode out the ass of the car.

I still think it's vibration then. Lift it up and get under it while someone revs the motor, might be moving just enough to hit a shield or perhaps there's a broken hanger you haven't seen.

[Hallowed_point]

I would recommend a magnaflow muffler...I have one welded in my 98 camaro & with my off-road y pipe and longtube headers there is only the slightest hint of rasp in lower gears & low rpms which I don't mind at all.

[Andrew64]

Does the car still have a cat(s)? When I took mine off and put a straight pipe, I got exactly what you're describing. Drove me so crazy I put the cat back in haha. Another words, needs more sound dampening and it was definitely NOT due to vibration.

[xtreme prelude]

its not vibration, thats for sure. yes the cats are gone, with the long tube headers, it eliminates the cats. i am going to add a couple of vibrant ultraquiet resonators in the rear. if that doesnt work, then i will put the stock headers and cats back on.

[Revhard]

Originally posted by xtreme prelude
its not vibration, thats for sure. yes the cats are gone, with the long tube headers, it eliminates the cats. i am going to add a couple of vibrant ultraquiet resonators in the rear. if that doesnt work, then i will put the stock headers and cats back on.

What long tubes did you get? My crap ARH came with hi-flow cats, and even with the v8 it was pretty snarly without them. I put the ARH cats in until I make some changes. If you could hold-off, you can have mine in about a month when they come off.

[JRSC00LUDE]

Ok, I believe you! haha

I had the same thing between about an 800 rpm range in my car and it was from a bad hanger location, that's why I thought that way.

Good luck working it out!