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SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS! |
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06-12-2008, 09:15 AM | #46 |
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I am very interested in this exhaust ! Have been waiting to pull the trigger on an exhaust for 2 months... THat being said, if the race is definetly a muffler bypass it better be less than a grand because my local shop said they could fab me up tips and pipes that delete the muffler cans for less than $400....I WANT LOUD!!!!!!!!!!!!
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06-12-2008, 02:56 PM | #48 | |
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Price is to be determined after Laidback gets off his lazy ass and comes back for more testing. Guys, I am NOT going ahead with this project until Laidback comes back for more dyno testing. The entire project is at a stand still and I cant/wont take the next step until I can see dyno proven results on a consistant basis. We arent like some other companies who will prototype something and pull numbers our of our @sses. So, I've been asking Chris to come back and dyno before I do anything else. Maybe you guys can help me pressure him. Here is the testing/prototype procedure. Understanding this will give you guys an idea when the exhaust might be ready. stage 1: prototype exhaust for fitment and performance stage 2: dyno depending on the outcome of stage 2, we move on to stage 3 stage 3: prototype for sound and pricing stage 4: dyno stage 5: 500-1000 miles on the car stage 6: dyno stage 7: jig is made from prototype stage 8: first production piece is made from original jig, then test fitted to ensure fitment accuracy. stage 9: production 4-6 weeks We are at stage 2 right now. Its a waste of time and money for us to make something that doesnt work so I need to make sure we dyno the car again before taking the next step. In the end, Im NEVER going to put the RPi name on a product that doesnt work. |
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06-12-2008, 04:38 PM | #50 |
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Damn peer pressure!!! (Just when i was enjoying the POWER) Ok i'll drop of the Z4MC Monday early a.m and we can do all the testing...but guys you have to support this group buy and especially bring all your ASS at Mfest this coming August 29-31, 2008 as I want alot of Z presence and with some Hp/Tq to boot
Eloy, My lawyer friend just got an Z4MC (someone pressured him i think) and he said he's in for the RPI scoops, software and exhaust
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06-13-2008, 12:44 AM | #51 |
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i cant WAIT to hear the race exhaust..
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'11.75 ///E90 M3 ZCP | DCT '06 ///M5 | SMG - Gone '98 ///M3 | 5MT - Gone '07 ///M Coupe | 6MT - Gone |
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06-14-2008, 10:28 AM | #52 |
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Short clip and very close on what the RPI GT RACE Exhaust...
1st gear to 2nd gear...window half way up
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06-14-2008, 11:06 AM | #53 |
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Sounds good.
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06-14-2008, 01:24 PM | #54 |
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06-14-2008, 07:23 PM | #55 |
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Nice Sound.
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2007 M Coupe w/NAV/Premium/Extended Leather, Clearbra, DICE, 4.10 BMW Motorsport Polished LSD, Active Autowerke Gen IV Headers, Supersprint Race Exhaust and X-Pipe, ESS Tuned DME, KWV3 Coilovers, Volk RE30, OEM Strut Tower Brace, Short Antenna, JL AMP, JL 10W7, Valentine V1.
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06-15-2008, 01:20 AM | #57 |
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Ok...i talked to Eloy today and I will be at RPI on Monday 9 a.m to dyno the car so we can move forward and get our EXHAUST!!!
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06-15-2008, 01:25 AM | #58 | |
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1. Laidback 2. ///Metak 3. SunnyD 4. Rosspbig 5. Matjo 6. bammered 7.
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06-15-2008, 05:00 AM | #59 |
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I added my name to the list. I'm definitely in on this one now that I am out of the Stromung GB...
1. Laidback 2. ///Metak 3. SunnyD 4. Rosspbig 5. Matjo 6. bammered 7. 335audioman |
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06-16-2008, 01:36 PM | #60 |
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How'd it go this morning Chris? What kinda numbers are we lookin at on the dyno? I can't wait to hear the production version of the exhaust
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'11.75 ///E90 M3 ZCP | DCT '06 ///M5 | SMG - Gone '98 ///M3 | 5MT - Gone '07 ///M Coupe | 6MT - Gone |
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06-16-2008, 06:26 PM | #62 |
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We had a chance to dyno the car today and there was a loss in performance by deleting the mufflers. Laidback was like, "youre going to post it?"
Well, of course I am! We are open with our testing results. So, I can tell you that running no muffler will give you no benefit and in most cases you will have a decrease in performance. We will be changing the design a little bit and then dynoing again. I appreciate you guys being patient with us but thats the way it goes. I have to personally see the benefits before we release anything. Stay tuned for version 2. It might not be the way of other manufacturers but its the way of RPi. |
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06-16-2008, 07:23 PM | #64 |
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Thanks for the update and the honesty! Glad to see a company doing the proper research on this product. Makes me feel better about throwing my hard earned cash your way!
MMMazing07 - Does it really matter how much power was lost? Power loss is a power loss. Even if it's 1 HP, why have something done to the car that decreases power? Wouldn't make sense. |
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06-16-2008, 07:29 PM | #65 |
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Props for honesty! RPI FTW.
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2007 M Coupe w/NAV/Premium/Extended Leather, Clearbra, DICE, 4.10 BMW Motorsport Polished LSD, Active Autowerke Gen IV Headers, Supersprint Race Exhaust and X-Pipe, ESS Tuned DME, KWV3 Coilovers, Volk RE30, OEM Strut Tower Brace, Short Antenna, JL AMP, JL 10W7, Valentine V1.
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