Looks great! hard to believe how crappy the m54 exhaust is. Looking forward to you review of them once you get them bolted up and running
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Looks great! hard to believe how crappy the m54 exhaust is. Looking forward to you review of them once you get them bolted up and running
+1Quote:
Originally Posted by Sockethead
got the aft header installed yesterday. took about an hour. two of the nuts had to be turned 'flat by flat' with an open end wrench... should do the forward header today. I expect it to be much worse. the void where it goes is how I was able to easily access the aft header.
Stock M54 manifolds are such garbage. Ugh. Almost physically painful to look at lol. I think I might get the Bimmerbrakes headers one day after all.
That aside, your S54 retro is coming along great.
Very impressive work! [emoji106]
thanks. got the second (forward) header on yesterday. it took about 3 hours, including a trip to napa to get a crows foot 11mm. two of the nuts had to be tightened with the crows foot and a couple wobbles to a wrench, turning, flat by flat.... not fun. got the underside of the car put back together. today, hopefully, I will get off work in time to start working on modifying the exhaust to adapt to the m3 section one pipe...
When I did my headers and sect 1 in my M3 it was a Beouch!! Hours and Hours of frustration but so worth it in the end.
Wow, that is the crappiest exhaust manifold I have ever seen! Great progress, like the project.
Definitely putting in catless headers after I pass my next smog. No wonder these cars pick up as much power as they do just by swapping those POS out
mating the 325i donor exhaust system that I previously 'muffler deleted' to the m3's section 1 pipe is going to be slightly more difficult than anticipated. the distance between the centerline of the parallel tubes is about 2" wider. So, I will have to shorten the inboard 45 deg run that goes to the first resonator. Will also have to fabricate a new hanger that mounts to the transmission since the wider spread will mean the factory hanger will be too narrow...
But the hard part is done and you have proven that M3 manifolds can be modified to work... at least physically so far...