05-10-2018, 06:16 PM | #1 |
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F90 M5 M Sport / Competition Exhaust arrived. Videos, install pics and decibels info.
Featured on BIMMERPOST.com Part number 18308092607 is the MSport assembly that includes the front 2 clamps. You will also need (2) Two of 18307560815 Butt-Butt Clamps as you can see in the pic below. BMW welded a short piece into the end of each pipe on the MSport exhaust for an easier installation. Here are stock exhaust resonator vs M Sport / Competition exhaust resonator photos. Stock resonator: M Sport / Competition exhaust resonator (showing less perforations than stock resonator): INSTALL PICS VIDEOS Stock exhaust M Sport / Competition Exhaust DECIBELS 0 dB gain at idle 0 dB gain at 2000 rpm hold (basically, a high idle) 6dB gain with stationary throttle blips. |
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05-10-2018, 06:44 PM | #2 | |
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05-10-2018, 08:46 PM | #3 | |
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Drives: BMW M5 CS, Porsche 911 GT3 RS
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05-10-2018, 08:52 PM | #4 | |
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I'll install it Saturday when I free up a little time. |
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05-10-2018, 08:55 PM | #5 |
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Nice! Enjoy it!
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05-12-2018, 08:10 AM | #11 | |
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I measured a billion times last night to mark the cuts on the factory exhaust for today’s install. Each place I marked had a factory mark (dimple) already on the factory exhaust. That CAN NOT be a coincidence. Look for it on your stock pipes on the bottom. |
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05-12-2018, 04:36 PM | #13 |
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Competition exhaust :
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05-12-2018, 04:55 PM | #14 | |
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I got confused There are 3 exhausts 1.Stock 2.Sports exhaust 3.M Performance Exhaust Which one did you buy? Thank you |
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05-12-2018, 05:26 PM | #15 | |
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1. Stock - Base 2. MSport which is also on the Competition Package aka Competition Exhaust. 3. MPerformance which is all Tianium and $8,500ish and will be released soon. 1 and 2 are above vids. |
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05-12-2018, 08:31 PM | #16 |
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05-12-2018, 08:43 PM | #17 |
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Well that's noticeable. I'll go this route for now also.
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05-12-2018, 09:03 PM | #18 |
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To give you some more data :
0 dB gain at idle 0 dB gain at 2000 rpm hold (basically, a high idle) 6dB gain with stationary throttle blips. WOT under load is the best improvement. If I rated the Factory Base stock exhaust a 0 The Akra on my X5M a 8 I'd give the Competition Exhaust a 4 or 5. Definitely worth doing, definitely enjoyable. If you like it LOUD LOUD wait for a race muffler. |
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