Iam trying to make a custom x-pipe to replace this section http://bmwfans.info/parts/catalog/E4...ront_silencer/ guys..
Originally Posted by zaharias
I might make the x-pipe tomorrow guys..
2" (50.8mm) is the inside diameter or the outside..?? I belive it's inside..
I can't find (in any shop at the island that i live) a bit bigger diameter than stock.. I find bends 60mm and tubs 50.8 (when i try to bend the 50.8 it gets smaller so we go 48!!!).. Iam trying to make the best possible without killing flow.. I want, not to affect performance.. i want to gain something if it's possible, not do it worse..
What do you guys think..??
Last edited by zaharias; 10-22-2011 at 02:49 AM.