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Will cutting off my muffler hurt my performance?

This is a discussion on Will cutting off my muffler hurt my performance? within the External Engine forums, part of the LSx Technical Help Section category; On my 92 RS I did a muffler delete and fabed a Y pipe and ran straights back with tips, ...

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    Junior Member HasselZ28's Avatar
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    Will cutting off my muffler hurt my performance?

    On my 92 RS I did a muffler delete and fabed a Y pipe and ran straights back with tips, it sounded great and I even thought I noticed a little power increase, now htat was on a 305, will this have any negative effect on my LS1? Thanks for all the help!

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    no more 4th gen secondgearscratch's Avatar
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    Quote Originally Posted by HasselZ28 View Post
    On my 92 RS I did a muffler delete and fabed a Y pipe and ran straights back with tips, it sounded great and I even thought I noticed a little power increase, now htat was on a 305, will this have any negative effect on my LS1? Thanks for all the help!
    no. save you about 50 pounds if you take off your catback.

    they say you lose a bit of low end in favor of a bit of high end.

    i have this done. feels a bit faster than normal.

    absolutely will not hurt one thing.

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    member since may 2000 nhraformula's Avatar
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    its not going to hurt anything.

    i used to own a 91 Z/28. i had the exhaust shop run straight pipes also.

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    You may lose torque.

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    old timer blue02Z's Avatar
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    i would put in an aftermarket catback if i were you. i would sound better...

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    no more 4th gen secondgearscratch's Avatar
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    Quote Originally Posted by myss984 View Post
    You may lose torque.
    that you wont notice.

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