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      05-12-2018, 09:03 PM   #18
onfireX5
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Drives: F90M5,F85X5M
Join Date: Jul 2015
Location: Va

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Quote:
Originally Posted by elitex View Post
Well that's noticeable. I'll go this route for now also.
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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