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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 10-24-2007, 03:17 PM   #1
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Default PEMs

Has anyone here used these?

http://www.zzperformance.com/grand_p...=208&catid=110

Seems to me like a good low price alternitive to headers. I'm considereing these along with a free flow cat instead of headers. Anyone have any thoughts on this?
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Old 10-24-2007, 04:42 PM   #2
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I like mine, granted i didn't get them from ZZP but if i had to do it all over i'd get headers instead.
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Old 10-24-2007, 04:54 PM   #3
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I also like my PEMs, but then mine'* and SE and I have no plans to try and get huge power from it. It seems that many who have SSEis and are regularly tweaking for more power end up with headers in the end, making the vote for headers a seemingly better bet.

You should try and search on headers here on BC, as there are a number of good recent threads dealing with header choices, pros and cons, and installation. I don't think I've seen a single thread where someone wishes they had not chosen headers over PEMs.
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Old 10-24-2007, 05:07 PM   #4
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Good advice, but I've done that already. I would like headers, but there'* a cost issue. About $600+ for headers, or about $300 for PEMs. I'm not planning on going way overboard on power. My plans are to finish the exaust. Upgrade my valve springs to LS6 springs. Then perhaps upgrade my front breaks. My wife'* already grumbeling I'm spending to much money.
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Old 10-24-2007, 05:09 PM   #5
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have you considered buying an extra set of EM'* and porting them yourself??
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Old 10-24-2007, 05:50 PM   #6
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Quote:
Originally Posted by Danthurs
Good advice, but I've done that already. I would like headers, but there'* a cost issue. About $600+ for headers, or about $300 for PEMs. I'm not planning on going way overboard on power. My plans are to finish the exaust. Upgrade my valve springs to LS6 springs. Then perhaps upgrade my front breaks. My wife'* already grumbeling I'm spending to much money.
you can't use ls6 springs, have to use 105'*
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Old 10-24-2007, 07:32 PM   #7
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Quote:
you can't use ls6 springs, have to use 105'*
Dang, your correct, don't know how I missed that. Good thing I didn't get them. Those are for 98 to 03. Thanks.
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Old 10-24-2007, 07:37 PM   #8
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Isn't the GP rear manifold different than the Bonneville?
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Old 10-24-2007, 08:13 PM   #9
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Quote:
Originally Posted by willwren
Isn't the GP rear manifold different than the Bonneville?
I think it is. I believe that the fronts are the same.

In my opinion 300 for PEMs is WAY over priced, you should be able to find a set of used headers for that amount.
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Old 10-24-2007, 08:21 PM   #10
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$300 is also adding in a free flowcat. The PEMs are $120 + $80 for powder coating. So $200. Then about $120 to have a cat welded on.
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