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Are LT1 and LS1 cat-backs the same?

This is a discussion on Are LT1 and LS1 cat-backs the same? within the External Engine forums, part of the LSx Technical Help Section category; I plan on buying a magnaflow cat-back, but he had it on a LT1. Im pretty sure there the same ...

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    Member T/A36's Avatar
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    Are LT1 and LS1 cat-backs the same?

    I plan on buying a magnaflow cat-back, but he had it on a LT1. Im pretty sure there the same just thought i would make sure. THANX

    Travis

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    Senior Member mrr23's Avatar
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    the point where the i-pipe travels down the driveshaft tunnel is the same. for the LS1, the y-pipe connects to the i-pipe in the tunnel. for the LT1, the y-pipe connects to the i-pipe over on the passenger side.

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    Member T/A36's Avatar
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    So what could i do to make it fit?

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    Senior Member mrr23's Avatar
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    just cut it back to where your factory y-pipe will meet it at is all.

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by T/A36 View Post
    I plan on buying a magnaflow cat-back, but he had it on a LT1. Im pretty sure there the same just thought i would make sure. THANX

    Travis
    If it was a cat-back from a 97 or some 96's, you will have no problems because it will be the same.

    What year F-body is the cat-back off of?

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    Moderator Firebirdjones's Avatar
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    Also the hangers at the rear tailpipe area are slightly different. Easy enough to adapt though. There is even a kit available to adapt the older style hanger to the newer one,,,something like $25 or so.

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    Member T/A36's Avatar
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    Quote Originally Posted by 9t8z28 View Post
    If it was a cat-back from a 97 or some 96's, you will have no problems because it will be the same.

    What year F-body is the cat-back off of?

    Im not sure, he said it will fit an ls1 perfect so im guessing 97 then.

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