12-27-2012, 04:38 AM | #67 | |
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12-28-2012, 10:32 AM | #69 |
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will the downpipe fit with xdrive?
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2013 F30 335i xdrive | Estoril Blue | Black Dakota Leather | Aluminum Hexagon trim | M-Sport | Cold weather | DHP | Premium package | Tech package | Harmon Kardon | PDC | Rearview Cam | IND Painted reflectors | BMW performance grills | JB4 stage 2 | ER downpipe | BMS Intake | H&R sport springs
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01-02-2013, 08:39 AM | #70 |
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CEL with HFC
Last time I checked the HFC tested out to be fine after 3K miles. Is this an ongoing test? Any update?!
I just received my HFC one today and can't wait to put it on!! |
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01-03-2013, 05:01 PM | #71 |
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Still have to confirm this. I'll try to get a car in here the next 2 weeks if possible. The OEM downpipe is the same part number as the RWD model cars, and ours is no bigger of a footprint than the oem unit, so im not expecting any problems.
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01-04-2013, 04:07 PM | #72 |
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let me know when your 100% sure thats the only thing stopping me from getting the full system
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2013 F30 335i xdrive | Estoril Blue | Black Dakota Leather | Aluminum Hexagon trim | M-Sport | Cold weather | DHP | Premium package | Tech package | Harmon Kardon | PDC | Rearview Cam | IND Painted reflectors | BMW performance grills | JB4 stage 2 | ER downpipe | BMS Intake | H&R sport springs
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01-09-2013, 12:10 PM | #74 |
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Most of the catless units have gone overseas so far, so i havent seen any videos from customers just yet. Either one can be installed with the OEM exhaust as well.
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01-09-2013, 12:37 PM | #75 |
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01-09-2013, 05:58 PM | #78 | |
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Sorry, we only have videos with our catted downpipe and full exhaust currently. Last edited by GTM_Challenge; 01-10-2013 at 02:22 PM.. |
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01-11-2013, 11:22 AM | #79 |
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Anyone installed this? I'd like to go with the HFC version, assuming it can pass emissions and not throw codes, but my concern is on performance. The varied consensus on downpipes is catless is the way to go and even high flow cats are still cats and are not really 'bang for your buck' purchases.
My thought was pairing this with a JB4. I'd love to see real world performance gains with the package and what people saw with just one or the other on (that and does it pose any emissions issues). |
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01-11-2013, 01:42 PM | #80 | |
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01-11-2013, 02:48 PM | #81 |
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01-11-2013, 03:58 PM | #82 | |
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01-13-2013, 05:17 PM | #83 |
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Only question I have is how hard is it to either add a spacer or turn off the CEL for the catless? Is it just a coding issue and take 15minutes to deal with or is it a true ECU change?
Challenge, would I still see 10-15hp/tq with stock exhaust and the catless? (hypothetical, I won't quote you on it)
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01-14-2013, 12:52 PM | #85 |
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01-14-2013, 12:56 PM | #86 | |
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To me, the car feels sluggish even stock in comfort mode so its hard to tell. The turbo does come on stronger once spooled as you feel the TQ im sure. Hopefully you get your cat back soon so you can give a better driving impression. |
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01-14-2013, 12:59 PM | #87 | |
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We havent played with any spacers onthe catless model yet There isnt alot of room to fit some of the spacers as well. We generally prefer to do it with software as a more consistant solution. The 335 is still lacking in some ECU options but im sure more will come with time. our testing with the catless downpipe is limited right now as far as gains with a stock exhaust mostly due to the lack of ECU support. 10-20 hp/tq would be a pretty safe estimate though |
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01-14-2013, 01:00 PM | #88 |
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