Pontiac GTO 2004-2006 The Modern Goat

Looking to go catless this year!

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Old 01-02-2016, 05:44 PM
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Default Looking to go catless this year!

Looking for a touch more volume and power, but I can't find anything that'll work without fabbing a custom set for SLP Longtubes on my LS2 '06.

Anyone ever used Kooks midpipes or something like that in this scenario? Luckily Illinois hasn't made emissions testing mandatory, so I'll be able to get by with this
Old 01-02-2016, 09:52 PM
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Yes! I have dynatech headers and I refused to pay $400 for a set of mids so I bought some used 3" kooks cattless mids and welded a pair of ball flange collectors to them. Sounds great and made nice power numbers
Old 01-04-2016, 03:52 PM
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I have the Kooks catless mids with Kooks LTs and a Corsa sport exhaust. Fits great sounds down right evil.
Old 01-05-2016, 09:07 PM
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You guys thing there shouldn't be too much adjustments needed to be made with putting some catless Kooks in?
Old 01-06-2016, 12:30 AM
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Flowmaster (Magnaflow too) has clamp-on ball flange kits you could use (use band clamps). I switch from catted to catless and never need to tune for them. To be truthful, I've never noticed any difference in performance, but it's louder without cats.

Last edited by Jontall; 01-06-2016 at 08:09 AM.
Old 01-11-2016, 09:29 PM
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What about Pacesetter? I've been looking between Kooks and them mostly.
Old 01-24-2016, 09:31 PM
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Pacesetters and catless mids here. Slip fit connections are ok, not great but good enough. I had to open the pacesetter mids a bit with an exhaust expander tool from the parts store. I love the sound through my cheap @$$ 3" Maximizer HP eBay exhaust system. Lol



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