[Vic311]

Originally Posted by flinchy

Is it really that hard?

https://www.google.com.au/search?q=s...&client=safari

Add 'dynos' to see there really is a decent amount to gain...

Change to 'e92 m3 headers' for slightly different results.

You typed the same google search that I did and got the same result. If there is someone making them they certainly aren't popular.

FYI. http://www.m3post.com/forums/showthread.php?t=619188

Don't know what they are doing down under..but here no one is willing to pay thousands for something with little to no improvement over stock.

Xpipe and exhaust customization are where the gains are.