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10-13-2008, 01:25 AM | #1 |
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RE Diablo
Anyone try out the Rogue Engineering Diablo exhaust for the MZ4 yet? Essentially it's a pair of higher flowing rear cans, but price is good too...
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10-13-2008, 01:22 PM | #3 |
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I read yours. Nothing about performance. All sound. I'm more interested in performance.
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10-13-2008, 01:32 PM | #4 |
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really not sure how much performanc eyou are looking for out of 2 cans...
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10-13-2008, 01:38 PM | #5 |
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Well, don't want to loose any first and foremost. RE doesn't have dyno charts to show the results of their/your system, which personally I think is suspect (that's based on an email I received from they today). Ultimately I'm looking to try and retrieve the 11 hp and 17 lb/ft of torque BMW NA robbed from us with the US spec exhaust system. But I'd prefer to not have to spend $4,000 to do it...
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10-14-2008, 02:25 AM | #7 | |
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Ultimately I'll get a price on the Euro headers and catalytic converters from here as opposed to the Turner Motorsport's high price ($4,160). I'm hoping it would cost less here, especially once I subtract the 19% tax.
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10-14-2008, 11:36 AM | #8 |
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any strait thru header will do. tintboy and myself have been running 100$ ebay headers without issue and hes had them much longer and ran race fuel thru them. so save your money there. get an ecu tune first so as not to soil yourself pissing in the wind b.c at stock it wont stray far from baseline. but honestly with just cans, youll be faster if you keep fuel at a 1/4 tank and cut the weight. if youre gonna get cans do it for sound. the RE diablo is feirce and those 80mm tips are sexy as hell
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10-14-2008, 11:58 AM | #9 | |
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10-15-2008, 07:41 AM | #13 |
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have you heard it? cause you would be the first person to ever say that....
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12-02-2008, 09:08 AM | #14 |
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driving to work today, i look in my rearview mirror and see a GTR zooming to catch up from behind. He pulls up besides me and signals to lower my window. He says to me he was driving to his body shop and heard "one mean machine" and had to see what it was. i began to laugh. i really love this exhaust haha.
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12-02-2008, 12:30 PM | #16 |
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it is definatly aggressive. my gf claims she knows im coming to pick her up because she can hear my car coming from down the street. but imho, i don't think its obnoxiously loud. its sporty loud, the way a sports car should sound.
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12-02-2008, 02:09 PM | #17 | |
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And FYI if you did not install them yourself you probably don't know, but you probably have an O2 sensor SHOVED into your transmission housing (on the e46 anyway, haven't put a set on any Z4s) unless your shop was nice enough to take the extra time to cut the bung in half. Not to mention that you have to physically pound them onto the studs of the block to just get the flanges to fit and then muscle the outlet flanges together to get them to fit into the stock exhaust. And a new one I experienced with the last set that came through, the idiots laid such a thick weld on cylinder 6 that the nut would not thread onto the studs, the only way to use them was to grind down a nut to clear the weld. That's why we charge extra to install them and don't really warranty the work. Oh did I mention the gaskets are HIGHLY prone to failure?
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12-02-2008, 03:53 PM | #18 | |
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12-02-2008, 04:40 PM | #19 |
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12-02-2008, 05:10 PM | #20 |
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Yea an the OP is looking for performance from exhaust, which headers are the best for. Which means he might be swayed by the "cheap" price of ebay headers. Just wanted to make sure those less experienced with them had some info on them.
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12-02-2008, 06:52 PM | #21 | |
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12-02-2008, 07:29 PM | #22 | |
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Having the stock exhaust pushing out against the tips of the headers causing unneeded stress on the head bolts I consider a problem. Having to either grind down a weld or a nut, a problem (major reduced clamping force). Having to chop an O2 bung in half and only being able to put o2s in two of the bungs leaving you no place to put a wideband. A Problem. Sorry, I also forgot to mention that the walls of the ebay headers are less than half as thick as SS or AA headers which mean they make your exhaust sound like crap. That's actually where a lot of the e46 rasp comes from, and make no mistake of this as a joke. But some people think if they fit and "work" then there is no problem and they are happy. I originally planned on ebay headers too, then I installed and heard a few of each and quickly changed my mind.
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