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      10-23-2019, 05:56 PM   #125
RevNev
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Drives: X3 M40i
Join Date: Oct 2018
Location: Australia

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Quote:
Originally Posted by spool twice View Post
A small snag, so the front of the diff (or near the outlet of the OE resonator/H-pipe), there is almost no space to curve the passenger side towards the drivers side to add length unless you want pipes that hang low and increase the risk of hitting road debris.

Back to the drawing board. There is a lack of room for 10-13" of length and to also merge the pipes once at least 90% equalized, it'll take some creativity.
There's no room to equalise the downpipe length without mega tight bends that'll effect flow and performance. There's also no room to equalise mid pipe length prior to merging and in the big picture, you want to retain the quad exhaust outlets and valved muffler particularly after cat removal for maximum performance, they're LOUD cop bait and drone in the car and the stock ZCP and CS muffler does a good job at noise and drone control.

Without reducing performance potential and retaining quad outlets and a valved muffler with no ugly pipework hanging down under the car, the midpipe is the only area that can be modified to improve the sound and maintain the required features realistically.
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