11-01-2020, 01:49 PM | #45 | |||
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Obviously you think that the above is for no reason..... as well as the fact that 200 cell are much more rare and come from much less reputable manufacturers than 300 cell....
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It was about some data available about the power improvement (or suppression) of a DP (or various cell DPs) in comparison to the stock DP. I recall something like 200 or 300 cell being much closer to catless (with % being quoted) in comparison to stock.
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11-01-2020, 05:03 PM | #46 | |
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11-02-2020, 01:50 AM | #48 | |
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Of course quality comes with a price tag. HJS's own DP seems to be the best value for money product on the market.
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11-02-2020, 10:17 AM | #49 |
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HJS cats are the best in my opinion (used with fabspeed DP), GESI cats (used with active autowerke DP) are the best value option for a no CEL guarantee
if the car is tuned and/or the CEL is not a concern, CTS catted DP are the best value
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11-03-2020, 05:02 PM | #50 |
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I don't see why CG downpipes aren't getting more consideration. They were one of the first B58 downpipes that didn't throw a CEL, and mine still doesn't. With a 5" diameter and 200 cell, you're getting nearly all of the gains of catless.
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11-03-2020, 05:52 PM | #51 | |
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So if I bought the CTS what oxygen spacer should I buy? Last edited by 340iGUY; 11-03-2020 at 06:57 PM.. |
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11-04-2020, 07:15 AM | #52 |
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CG is very popular for us, but it takes weeks to ship
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11-20-2020, 09:40 PM | #53 |
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Anyone know if it's safe to run ots burbles on BM3 Stg2 with the CTS catted dp? Their site says they don't warranty cats damaged by a crackle tune but also suggest running bm3 stg2.
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11-21-2020, 06:25 AM | #54 |
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I think it's safe, just keep it reasonable from a loud and time stand point.
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11-23-2020, 11:01 AM | #55 |
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Default level should be fine
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11-23-2020, 05:14 PM | #56 |
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Stock BMW map is hella burbly. I'd make crazy gunshots FBO untuned. I think the OTS default is a tad bit tamed down from stock.
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11-23-2020, 06:38 PM | #57 |
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Thanks guys, I might just have to go with the CTS catted down pipe. Looks like you can drive on it long enough (at least 700 miles if I am reading correct) so it will pass emissions here in NY and hopefully can handle the ots burbles of stage 2.
Hmm, for me, the stock tune can get me a more louder pop but seems to be less frequent/less duration. On stage 1 OTS burbles, I get a lot smaller pops and for a little longer duration with the occasional loud pop, but nothing like the pop that it makes in stock tune (if that makes sense). Currently only have a awe midpipe and remus axleback. |
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11-23-2020, 09:06 PM | #58 | |
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If you're tuned, you're disabling the catalyst ready monitor, and you will might fail depending on how strict your local emissions laws are. If you're allowed 1 or 2 not ready monitors, then you might be good. CTS doesn't give a no CEL guarantee on this product and their product description recommends to use with a tune to ignore the CEL.
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11-23-2020, 09:25 PM | #59 | |
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12-12-2020, 06:47 AM | #60 |
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I've recently installed this downpipe and as a test, left the monitors active in MHD as a test to see if the catalyst readiness is set (note that i did install a spacer on the rear O2). I will report back.
As a side note, i am getting a pretty strong smell from the downpipe itself (not the exhaust smell from the rear of the car which is fine actually). I expect a new exhaust part to have an initial smell but it's still pretty strong a week later. As a secondary side note, stock exhaust otherwise and sound is great, only slightly louder that stock if you're not looking for loud... maybe the dinan midpipe would make it perfect...
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12-12-2020, 02:05 PM | #61 | |
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12-12-2020, 03:50 PM | #62 |
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12-12-2020, 07:00 PM | #63 | |
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12-13-2020, 07:52 AM | #64 | |
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12-14-2020, 09:29 PM | #65 |
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Yea, thats strange mine seemed to be burnt off after a couple hundred miles. Curious what it might be.
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12-15-2020, 04:54 AM | #66 |
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I'm gonna through it up in the air at the shop and take a look, still there although less... I'll report back...
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