I would suggest you DO NOT weld your exhaust especially your headers. It will make it waaaay easier to work on just in case shit happens and you need to replace something in or around your exhaust. Then your gonna have a hacked up exhaust system. There are some good stepped clamps out there that you can get at NAPA and they won't leak. Just my .2
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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