GMMG Spring Exhaust GP

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Old 05-10-2007, 04:03 PM
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Originally Posted by BaddassZ28
whats the rwhp gain over stock????
For a stock 98-02 Z28 or transam there is a 10-12HP gain. For a stock 98-02 SS or WS6 there is 5-7HP gain
Old 05-10-2007, 05:22 PM
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have you figured out the dimensions of the pipes/tips? not trying to rush you, just curious.
Old 05-10-2007, 05:40 PM
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Originally Posted by cals400ex
have you figured out the dimensions of the pipes/tips? not trying to rush you, just curious.
Were you not the person who called us yesterday? Someone called yesterday & I though it was you & Matt called him back & talked about the very same question you have. Let me know. Sorry if it wasn't you. PM me your phone #.
Old 05-10-2007, 05:41 PM
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Originally Posted by cals400ex
have you figured out the dimensions of the pipes/tips? not trying to rush you, just curious.
this is what I got from angel in an email when I asked about the tips earlier this year

Originally Posted by Angel
Standard tips:
11in.x 2 & 3/4in.(tip end)
2.5in. at the exhaust pipe end
Angle is cut with the sharp edge removed

Oval tips:
10.5 in. long
6.5 in. wide
2 & 3/4 tall
2.5in at exh. pipe end
Angle cut
Old 05-10-2007, 06:38 PM
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Hey! just curious on how many orders you are up too... becuase i take it that if you dont get 10 then i dont get my pipes???? so come on guys order up! best exhaust for f-bodies on the market PERIOD. go listen to a dick harrel phase 3 (i think) and you too will fall in love....
Old 05-10-2007, 11:26 PM
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so, the pipes going into the tips must be 2.5 inch outside diameter and the tips must be 2.5 inch inside diameter?

No, I was not the person that called today. Sorry about that. I will actually be out of town for about a week but if you still want my number i can give it to you. I will have computer access to check this thread. Thanks again.
Old 05-11-2007, 01:18 AM
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yes its a 2.5/2.5 ... any tips that say 2.5" on them will mount perfectly fine
Old 05-11-2007, 08:54 AM
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Originally Posted by transmaro93
Hey! just curious on how many orders you are up too... becuase i take it that if you dont get 10 then i dont get my pipes???? so come on guys order up! best exhaust for f-bodies on the market PERIOD. go listen to a dick harrel phase 3 (i think) and you too will fall in love....
We have 5 orders so far.
Old 05-11-2007, 09:31 AM
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Originally Posted by cals400ex
so, the pipes going into the tips must be 2.5 inch outside diameter and the tips must be 2.5 inch inside diameter?

No, I was not the person that called today. Sorry about that. I will actually be out of town for about a week but if you still want my number i can give it to you. I will have computer access to check this thread. Thanks again.
Looks like your questions have been answered. If you have anymore let me know. Again sorry about that. I thought we had spoken to you on the phone is why I didn't answer on here.
Old 05-11-2007, 02:14 PM
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Just sent you guys an email.
Old 05-11-2007, 11:34 PM
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Sent you a PM about shipping and payment info. Let me know as soon as you can and I will authorise payment. I am so excited about this you have no idea. I love Christmas in May!

Zoom, zoom indeed.
Old 05-11-2007, 11:39 PM
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Originally Posted by GMMG, Inc.
For a stock 98-02 Z28 or transam there is a 10-12HP gain. For a stock 98-02 SS or WS6 there is 5-7HP gain

I was wondering why the SS / WS6 shows a 5 hp less increase? What is the cause of this?
Thanks
Old 05-12-2007, 12:50 AM
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Because stock ss / ws6 had better flowing exhaust from factory.
Old 05-13-2007, 12:24 PM
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Default Payment sent

Angel,

I sent payment via paypal. Thanks for your help. Tack one more up for the group purchase.

Thanks
Old 05-14-2007, 08:21 AM
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Originally Posted by 98ssht
I was wondering why the SS / WS6 shows a 5 hp less increase? What is the cause of this?
Thanks
Because the SS and WS6 muffler is a free'er flowing exhaust than the stock Z28 and Trans Am exhaust. It flows better and is worth a few more HP.
Old 05-14-2007, 08:22 AM
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Originally Posted by benkenobi9
Angel,

I sent payment via paypal. Thanks for your help. Tack one more up for the group purchase.

Thanks
Got it...thanks!
Old 05-14-2007, 09:50 AM
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If it comes down to you needing one more order then let me know. I just dont' want to send the money in now and have to wait for an exhaust or come to find out we are 2 people short and the group purchase won't go through. so if it goes through let me know and i will probably take one. you won't accept credit card will you?
Old 05-15-2007, 04:40 PM
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Sent my check on last friday!!!!!
Old 05-15-2007, 08:41 PM
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Can you pm me a price with out tips
Old 05-16-2007, 10:10 AM
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Originally Posted by robert99ss
Can you pm me a price with out tips
I sent you a pm.


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