01-18-2012, 10:07 AM | #1 |
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New KKS Performance F10 M5 exhaust out
Featured on BIMMERPOST.com I've got a button to control the valves autonomous. Downpipes are the next thing to come these days :-) We have not made WOT runs as the car is factory new and nit run-in. The reving-noise was raised from 93db to 108db with open valves. Closed valves mean stock noise levels. Here's some more info: it's a 3" axle-back, it doesn't make sense to change the piping from downpipes to rear axle as it is full 3" stock and has 2 very very small mufflers. The biggest restriction are the downpipes with 4 (2 on each side) restrictive catalsysts. I'm getting new SS downpipes with 2 (1 on each side) 200cpi metallic cats. No engine light, a decent hp gain and more noise is promised :-) KKS delibers a button or remote to control the exhaust . The stock exhaust valves open/close at certain rpms or WOT so you can't control them the same way like the KKS exhaust. That's the big difference between other bolt-on exhausts and this one. The weight is same as stock as far as I can tell. Updated with video: |
01-18-2012, 10:56 AM | #2 |
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siiick! i wanna hear that s63tu growl.
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01-18-2012, 11:11 AM | #3 |
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Very nice!! I know some folks don't like the F10 whitelines, but I love it on black.
Any exhaust clips?
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01-18-2012, 10:43 PM | #5 |
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Please let us know if they're still working after 10,000 miles. Most fail by then.
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01-19-2012, 01:32 AM | #7 |
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Please tell me this makes the M5 more vocal than it is now
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01-19-2012, 03:43 AM | #8 |
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01-19-2012, 03:48 AM | #9 |
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We have not made WOT runs as the car is factory new and nit run-in.
The reving-noise was raised from 93db to 108db with open valves. Closed valves mean stock noise levels. Here's some more info: it's a 3" axle-back, it doesn't make sense to change the piping from downpipes to rear axle as it is full 3" stock and has 2 very very small mufflers. The biggest restriction are the downpipes with 4 (2 on each side) restrictive catalsysts. I'm getting new SS downpipes with 2 (1 on each side) 200cpi metallic cats. No engine light, a decent hp gain and more noise is promised :-) |
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01-20-2012, 01:00 PM | #11 |
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It will be interesting to be hearing the stock noise being played on the speakers of the car and then hearing the actual noise of the exhaust from the cabin.
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01-21-2012, 09:27 AM | #12 | |
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Any weight savings over the factory exhaust system?
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01-21-2012, 10:52 AM | #13 | |
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Quote:
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01-23-2012, 02:59 AM | #14 |
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KKS delibers a button or remote to control the exhaust .
The stock exhaust valves open/close at certain rpms or WOT so you can't control them the same way like the KKS exhaust. That's the big difference between other bolt-on exhausts and this one. The weight is same as stock as far as I can tell. |
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01-31-2012, 12:33 AM | #16 | |
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Quote:
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01-31-2012, 12:12 PM | #18 |
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For some, there is never enough.
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01-31-2012, 12:24 PM | #19 |
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i like it! sounds good!
but so far I still lke the e60m5 with exhaust more! I guess V10 is just different!
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01-31-2012, 12:33 PM | #21 |
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the rear begs for an aggressive diffuser huh!
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