10-19-2019, 11:50 AM | #23 | |
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10-19-2019, 12:13 PM | #24 |
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Quick and dirty: 435 MPE resonator delete vs stock M3 Comp pack.
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10-19-2019, 01:35 PM | #25 | |
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10-19-2019, 01:50 PM | #26 | ||
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10-19-2019, 05:31 PM | #28 |
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10-19-2019, 07:23 PM | #29 | ||
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10-19-2019, 07:31 PM | #30 | |
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Is it lighter than the oem one? I noticed the one that I bought is way lighter than the oem muffler. I also changed it to MPE and I didn't see that big of difference because the expectations was high. But after driving it for a while and compare it with other vehicle i found it has very nice sound from outside with really nice burbles . I put an open air intake recently and the exhaust sound become louder and more burbles. I'm thinking to do resonator delete but I feel it will sound not good from inside or annoying. For the catted down pipe, don't you need to tune the car after install it? |
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10-19-2019, 07:33 PM | #31 | ||
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Will it pass the smog check in CA? |
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10-19-2019, 07:41 PM | #32 |
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both, fabspeed and cg precision ds-1, are high flow cats that do not trigger a cel, can run standalone without a tune and provide a decent gain.
flash tune and catted downpipe together will yield more gains. of course, if you elect to go catless then you need the flash tune to clear the cel that will be triggered. |
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10-19-2019, 07:43 PM | #33 | |
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Will they void warranty? Will it pass smog in CA? |
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10-19-2019, 07:45 PM | #34 |
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A little low RPM drone came when I removed the exhaust flap clip. Didn't get any worse from deleting the resonator.
I'm thinking about putting the clip back in.
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10-19-2019, 07:57 PM | #35 | |
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if something went wrong with your engine or transmission, any engine modification, especially mods such as piggy-back or flash tunes, down pipes, etc., may jeopardize that part of the warranty. i don't know what is required to pass smog in CA but if i had to guess, i would say it will NOT pass. |
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10-19-2019, 09:56 PM | #36 |
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10-20-2019, 03:50 AM | #37 | |
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10-20-2019, 06:45 AM | #38 |
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10-20-2019, 08:53 AM | #39 | |
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https://f30.bimmerpost.com/forums/sh...1&postcount=16 https://f30.bimmerpost.com/forums/sh...precision+ds-1 Last edited by alohasurftoad; 10-20-2019 at 11:16 AM.. |
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