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01-03-2013, 06:01 PM | #1 |
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N54 downpipes
How safe are catless downpipes for the n54 engine with 60k miles already on it I have an extended warranty just curious what kind of problems if any I would run into all I have now is a AFE Dci and jb4
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11' m57 335d 165k Miles - JR 2, ATM Full Exhaust & Intake, Wagner FMIC, AAR Boost Pipe, AAR Swirl Delete, AAR EGR Delete
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01-03-2013, 06:57 PM | #3 |
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Thanks didn't really think so just needed some reassurance its my first time modding a turbo car and emissions don't exist in south florida what are the most common people use not trying to blow money but i do want a quality material and sounding
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01-04-2013, 08:03 AM | #4 |
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VRSF and BMS make cost-effective options that have gotten fairly good reviews, though you do see some fitment/quality issues every now and then pop up. Cpe, AR, and Macht Schnell all make superb pipes, Gthaus makes great stuff as well but for whatever reason I don't see people running their downpipes. Then the top of the line (imo) would be Akrapovic and Supersprint. Both are heinously expensive.
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01-04-2013, 11:13 AM | #5 | |
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01-04-2013, 11:19 AM | #6 |
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In our country they put something down the exhaust pipe to test for CO and gases or something not sure what exactly will Catless dp pass that type of test?
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01-04-2013, 11:30 AM | #7 | |
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01-04-2013, 11:48 AM | #8 |
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Well it isn't a shop its a government owned testing center so I guess I cannot go the catless route
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01-04-2013, 12:09 PM | #9 |
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Some states here in the US just use the OBDII port for testing. In this instance a DP fix device will get you by. The sniffer test though is a no go for catless anything.
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01-04-2013, 12:26 PM | #10 |
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Like I said, crazy expensive...I'd be willing to pay a premium for Akra over say AR or other "merely" high-end companies, but over $1.5K for two pieces of test pipe....nah.
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01-04-2013, 12:27 PM | #11 |
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Sure you can, you'd just need to swap out to the OE downpipes for testing...Granted that is neither cheap nor convinient, it would probably come down to labor costs in your country, and how often you have to pass emissions testing.
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01-04-2013, 02:59 PM | #12 | |
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I was thinking of going the catted downpipe route and people haven't passed emissions this way either. So I said screw it, do my emissions before Feb 16th, install the catless DPs and not worry about it for 2 years. OP, you have to remember that you aren't guaranteed to pass emissions with an aftermarket catted DP, possibility of still failing emissions |
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01-04-2013, 03:09 PM | #13 |
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Thanks for the input I have seen most of those names I was also looking at Active Auto's downpipes seemed reasonable and I've heard there quality is good and they are also only 30miles from me but I'm looking in the 5-700$ range also what should I expect labor cost to be or hours
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01-04-2013, 03:10 PM | #14 | |
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01-04-2013, 03:26 PM | #15 |
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01-04-2013, 03:36 PM | #16 |
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Yeah that's around what I've been told too thanks
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