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PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Exhaust TECH > 3'' too big?
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Old 04-09-2008, 06:40 PM
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70lemansport 70lemansport is offline
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So i guess ill just get a free flowing 2.5 w/ an X pipe. Are you serious about the 3.5 or is that a joke?

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Old 04-09-2008, 07:38 PM
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wheelspin wheelspin is offline
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See his avatar and signature: it's a digger............

Les

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'68 Grand Prix/455, dual AFBs, T400, 2:93 posi (sold)
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Old 04-09-2008, 08:44 PM
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Quote:
Originally Posted by 70lemansport
So i guess ill just get a free flowing 2.5 w/ an X pipe. Are you serious about the 3.5 or is that a joke?
I run a 3.5-inch exhaust on my street-legal Super Gas/Super Street car that has a 350 ci - I run mufflers, too. See for yourself.


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Old 04-09-2008, 10:20 PM
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70lemansport 70lemansport is offline
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Thats BADASS! i think it might be overkill on my little lemans though...

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Old 04-09-2008, 10:45 PM
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Quote:
Originally Posted by 70lemansport
Thats BADASS! i think it might be overkill on my little lemans though...
Thanks! I would just try to go with the largest diameter exhaust that will fit. Oval tubing is also an option for a little additional clearance. Good luck and post some photos when you've got it installed.

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Old 04-11-2008, 09:54 AM
dbiggs dbiggs is offline
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I say a good 2.5" system with an X or H cross over.
What he said....2.5" is more than enough.

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