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Old 12-31-2012, 06:30 AM
nsogiba nsogiba is offline
Officially Welcomed to the 'Fest
Location: Buffalo NY
Join Date: Aug 2011
Posts: 654
Mein Auto: 2001 540i/6
I explored this topic when I first bought my 540i, I wanted that screaming V8 sound without having to deal with it all the time.

I removed the exhaust from the car and cut out a 6" portion of each pipe after the cats, before they joined into the one pipe at the y resonator. I did this to allow fitment between gas tanks and to allow me to use only 1 e-cutout instead of 2.

Welded in the y pipe and ran the cutout with electric valve for a few months and loved it. silent when you want, and screams at the flip of a switch.

Unfortunately my motor seized up on me, and I ended up just running the cutout wide open all the time until I took the car off the road.
6.0L LSx/T56 Swap

2001 BMW 540i/6 Sport, under the knife
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