01-14-2013, 04:44 PM | #89 | |
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01-15-2013, 12:13 AM | #91 |
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How bout a test pipe that "looks" like a catted pipe? With no honeycomb inside. Then spray paint it likes it rusty so when a cop inspects with a mirror it looks good to him?
Did this with my evo. |
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01-15-2013, 07:17 AM | #92 | |
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01-15-2013, 09:36 PM | #94 |
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01-17-2013, 03:29 PM | #95 | |
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My car is RHD, so will this DP could be installed in my car? And I couldn't see any exhaust for 335i in your website. Besides, what is the different between your grill and bmw's genuine black grill which other selling it on $52 or below for each? |
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01-21-2013, 09:23 AM | #97 |
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Hi Greg,
is it possible to install the downpipe incorrectly and still not have the CEL on? I had installed the HFC downpipe and tested it with P-Box. The numbers that i got was actually slower than a fellow 335i owner running stock. Like I had posted before I could feel the car pulling harder at high rev. is there any sign i should pay attention to? Could it interfere with JB? At the time of the testing I had hooked my car up with JB but i had switched the JB off. Tks! |
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01-21-2013, 10:56 AM | #98 | |
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Feel free to PM or email me so i can help you best as possible. Last edited by GTM_Challenge; 01-21-2013 at 12:37 PM.. |
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01-22-2013, 08:33 PM | #99 | |
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'12 335i Sport Apline White w/black... Totaled
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01-23-2013, 07:20 AM | #100 |
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Just try and do before and afters! I'm alson going to do the same thing but I need to find a good dyno around here...
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01-29-2013, 12:20 AM | #101 |
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I like my challenge HFC cat, but I keep getting my CEL light coming on..
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01-29-2013, 02:02 AM | #102 |
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Can the HFC DP be matted w/ the stock exhaust? If so, how much noticeable sound increase will there be?
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01-29-2013, 09:02 AM | #103 |
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I think they said it's an OEM swap, so to speak, so should be doable. If you get the high flow cat, you'll realize the most gains with this mod (usually)...you'll hear it, usually, more in the cabin, but like a sexy prrrr (my experience with DP's in other cars).
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01-29-2013, 10:56 AM | #104 | |
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01-29-2013, 11:27 AM | #105 | |
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01-29-2013, 01:04 PM | #106 |
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Give me a call on it. See what we can do to help solve the problem. It's possible BMW updated the ECU programing, install issue, or even seen O2 sensors get dinged durring install and go bad.. Thanks!
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01-29-2013, 01:05 PM | #107 |
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01-29-2013, 10:23 PM | #108 |
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Would you have any videos that show the HFC DP or even the catless DP w/ the stock exhaust?
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01-31-2013, 05:48 PM | #109 |
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Just an update, on my HFC DP, my CEL went off by itself.
Not sure why it came on, then went off on its own, but all of today it has been off. |
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01-31-2013, 08:27 PM | #110 |
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Yes looking for this also.
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