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-   -   Kreissieg F1 exhaust (valvetronic) (http://www.bimmerfest.com/forums/showthread.php?t=537231)

larryscmg 04-26-2011 02:28 AM

Kreissieg F1 exhaust (valvetronic)
 
What do you guys think? With a flip of a switch the car sounds stock!

http://www.youtube.com/watch?v=truTu...9F758BDB83B2D6

http://www.youtube.com/watch?v=UZjmbcePD18

http://www.youtube.com/watch?v=fbSqx...eature=related

http://www.youtube.com/watch?v=HPifqetINyo

blackmamba 04-30-2011 12:20 AM

Sounds good, but too raspy for my taste with the valve open & closed

SIN3 05-02-2011 04:38 PM

dear god... i love it.

BootyHunter57 05-31-2011 01:34 AM

sounds very good.

Gian124 08-02-2011 08:45 AM

Great, but expensive!
... was looking to buy one, but $9,529.00 shipped then installation is a bit steep for just the sound with minor performance change. Also, I am curious what the impact of the closed exhaust valves will be on the motor (will the internal exhaust valves in the cylinder head get fouled and caked with carbon due to increased backpressure?)

BADRIDES 09-04-2011 10:03 AM

what 10grand wow


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