08-15-2019, 07:17 AM | #1 |
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m40i downpipe
have been searching everywhere for catless downpipe for the m40i and with no luck ... but found 1 for the new supra made by boost logic.
is the downpipe on the supra identical to the 1 on the m40i? was not able to find the part number for the downpipe of the supra just the m40i and found diagram for both and they look the same . |
08-15-2019, 07:52 AM | #2 |
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There is this video on YouTube of a 2020 Supra being fitted with an exhaust downpipe.
To me it sounds a little tacky.
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08-15-2019, 02:42 PM | #3 |
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rk tunes and boost logic sells them for the 2020 supra ... need a confirmation if its the same part as the bmw dp so i can pull the trigger on one 😁
the G20 M340i has the same dp (same part number) and seems no 1 makes for it a DP so far Last edited by habib86; 08-15-2019 at 02:53 PM.. |
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08-18-2019, 07:56 PM | #4 |
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No one has test fit the current b58 DPs as of yet. Unfortunately, I sold my m240i with the DS-1 sport cat DP because it was welded to the Remus exhaust. Debating on spending the $300 for the VR catless DP for the b58 and see if it fits. I'm going to guess it won't but haven't gotten under the car to get a better look. The Supra video looks like the downpipe exits at a slight turn whereas the m240i didn't. Again, might just have to bite the bullet and find out.
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08-20-2019, 04:11 AM | #5 |
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just got an email from Jose Castillo at Boost logic saying :
"We believe that it will fit but we have not tested the fitment yet." and theres a tune from MHD for the g29 Z4 and a drop filter by BMC so guess im all set 😁 |
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08-20-2019, 06:36 AM | #6 |
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Let us know how it turns out! I've been back and forth with performance mods and wheels/tires. Already have issues putting power down so at least new tires are in order IMO before more power.
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08-20-2019, 08:49 AM | #7 |
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euro spec m40i downpipe is different that the us spec ons 😭
euro spec has the Petrol particul filter and the connection to the mid pipe seems to be different Last edited by habib86; 08-20-2019 at 08:56 AM.. |
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09-17-2019, 03:01 AM | #8 |
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just ordered a downpipe from supersprint and a bmc drop filter ... cant wait to see how much the b58 will be making ... will be posting dyno before and after the installation and tune
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09-17-2019, 06:14 AM | #9 |
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I'm really surprised that the EU spec m40i uses a vband clamp on both ends, whereas the US spec m40i uses vband only on the turbo side with a slip/clamp on the catback side.
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09-17-2019, 09:58 AM | #10 |
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that took me alot of research to know .... apparently the eu spec has a petrol particular filter ( its that small straw coming from the downpipe upper side ) and the HP power is less (340 )
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10-02-2019, 11:30 AM | #16 | |
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Quote:
https://www.rktunes.com/collections/...240i-340i-440i |
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10-02-2019, 01:11 PM | #18 |
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With a cat less DP you will definitely get a CEL. With a sport car DP it can be 50/50. Usually an O2 spacer helps if it shows up
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10-04-2019, 04:08 AM | #19 | |
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Quote:
if ur getting a downpipe u might as well tune the car as well |
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10-04-2019, 04:34 PM | #20 | |
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Quote:
Aras |
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10-04-2019, 05:00 PM | #21 |
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Mission performance has a tune for the M40i z4 and apparently so does MHD
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10-07-2019, 12:25 AM | #22 |
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i contacted them and was told to buy a B58 bootmod3 license and thy will add a OTS map later on for me .... just got the tune today so its off to the garage to get the downpipe installed finally
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