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Tons of rasp in my exhaust, what to do?

This is a discussion on Tons of rasp in my exhaust, what to do? within the External Engine forums, part of the LSx Technical Help Section category; I have GMMG and Pacesetter LT's and ORY. I want new exhaust tips but i'm having a hard time finding ...

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    Tons of rasp in my exhaust, what to do?

    I have GMMG and Pacesetter LT's and ORY. I want new exhaust tips but i'm having a hard time finding some that are resonated. Should i just get some nice normal ones and get a bullet muffler in the I? Or will this make it too quit? I like it loud, just not raspy.

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    Double Tap Heartbreak1's Avatar
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    Its probably the ory thats making the rasp sound. Any chance of changing it?

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    I thought about it but catted ones cost a decent amount.

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    Senior Member rajiv1998's Avatar
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    running an ORY isnt helping, so get some cats. Are all GMMG chambered exhaust? If so then get a muffler

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    Double Tap Heartbreak1's Avatar
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    Yea GMMG is chambered. The LT's shoudn't be the cause of this.

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    The Bandit Wesman's Avatar
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    Quote Originally Posted by Vertibird54 View Post
    Yea GMMG is chambered. The LT's shoudn't be the cause of this.
    I have heard from a lot of people that GMMG sounds raspy with LT's/ORY. IT sounds good with the stock manifolds, but once you go LT's, its just too much for some reason.

    Perhaps you can install some resonators to quiet some of the raspiness.

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    If i got the Bulliet in the I, would that work just as good as the cats?

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    Double Tap Heartbreak1's Avatar
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    Maybe, just something to eliminate the rasp is all you really need and that would work. Either that or put some high flow cats on there.

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    Cats will solve the rasp
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    can i put cats on without replacing the whole Y?

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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by 02_WS6 View Post
    If i got the Bulliet in the I, would that work just as good as the cats?
    bullets will not take away the rasp, been there dont that.
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    Member danziger's Avatar
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    Do NOT do a DynoMax bullet...it does nothing for rasp and drone. Try a Borla XR-1 in the I-pipe. It will still be loud, but the quality of sound will be much better. Just my personal experience...

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    Quote Originally Posted by 02_WS6 View Post
    can i put cats on without replacing the whole Y?
    ????

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    Member RE AND CHERYL's Avatar
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    Things that will cause your exhaust to sound raspy:

    LT headers
    Removing the cats
    Chambered mufflers or "cherry Bombs"

    Your pretty much screwed

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    Member jd2002ss's Avatar
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    I spent the big bucks and added Kooks headers and their catted Y pipe to my existing GMMG. No rasp.... just mean ass sound.

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    Were did you get the work done at?

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    Quote Originally Posted by 02_WS6 View Post
    Were did you get the work done at?
    Did it myself. It was a PITA but in the end it was well worth it!

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    Quote Originally Posted by 02_WS6 View Post
    ????
    Sorry, last time i'll ask.

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    Quote Originally Posted by 02_WS6 View Post
    can i put cats on without replacing the whole Y?
    LoL ok, last time

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