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Thread: #321 GTM Crate LS3 exhaust options for MA

  1. #1
    Junior Member
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    Aug 2017
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    #321 GTM Crate LS3 exhaust options for MA

    Hey guys,
    I picked up a partially completed GTM #321 in August and it has a 2010 crate LS3 in it. Being in MA, what exhaust options do I have that can pass my initial inspection? It has the 2 bolt center dump LS3 Corvette exhaust manifolds on it but that's it. I know the 3 bolt 01-04' cats that came with it won't work. I also tried fitting my old '12 C6 GS cats and they won't line up. Can they be cut/modified to work or are there other options that I can go with. I like the Kooks option but passing in MA plus sound is a concern as I'd like to autocross the GTM at Devens which has sound limits.

    thanks guys! My first post.
    Mike

  2. #2

    Join Date
    Feb 2011
    Location
    Norton, MA USA earth
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