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post #1 of 4 (permalink) Old 08-25-2010, 08:01 PM Thread Starter
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ZZP Header/DP

I recently purchased the GMPP Performance exhaust. I plan on getting a ZZP Header/DP combo to use with it but I'm unsure what DP I should order. Could someone help?

Last edited by Spikes111; 08-25-2010 at 08:59 PM.
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post #2 of 4 (permalink) Old 08-25-2010, 10:25 PM
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youre not sure whether or not to get a cat?
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post #3 of 4 (permalink) Old 08-26-2010, 04:28 AM Thread Starter
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Quote:
Originally Posted by mcscars View Post
youre not sure whether or not to get a cat?
Basically, to work with the GMPP catback should I order the 2.5" bolt in option with a 2.5" magnaflow cat? From what I understand the piping on the catback is 2.25 so will this not work???

Sorry this is probably a dumb question but I'm not incredibly knowledgeable as far as cars are concerned and I don't want to order the wrong thing and have it not fit.

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post #4 of 4 (permalink) Old 08-26-2010, 06:01 AM
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The 2.5 will work - it says on their site that it bolts to any stock or aftermarket catback so you should be fine.

Quote:
Originally Posted by ZZP
1 3/4" headers can be selected with either 3" or 2.5" downpipe sections but we recommend 3" because the cat flows more. 3" downpipe with bolt in 3" exit should only be selected with our 3" catback system. For custom exhaust systems please select a weld in option for the downpipe exit. 2.5" bolt in option bolts to all stock or aftermarket 2.5" catback systems.

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