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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 01-06-2011, 08:38 PM   #41
Blocked Out
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Originally Posted by estrellajon View Post
Did you install headers yourself? If so, how tough was it? Good to know you like bimmerbrakes. I may go that route.





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Yes I installed them myself. It was a breeze because it was my 3rd time I installed headers. Reason why I love bimmerbrakes headers is because they have %100 fitment for the flanges and O2 plugs, so there are no surprises when you do the install.

Just follow a DIY and you'll be good. One tip I may give you is to remove your electric fan when doing the install, if you dont it will hit the AC compressor when you are lifting up the engine on the pass side.

Good luck.
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Old 01-07-2011, 02:54 PM   #42
Au2bahn
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Same flange on the bottom where the stock headers connect to right?

Thanks

Quote:
Originally Posted by Blocked Out View Post
Yes I installed them myself. It was a breeze because it was my 3rd time I installed headers. Reason why I love bimmerbrakes headers is because they have %100 fitment for the flanges and O2 plugs, so there are no surprises when you do the install.

Just follow a DIY and you'll be good. One tip I may give you is to remove your electric fan when doing the install, if you dont it will hit the AC compressor when you are lifting up the engine on the pass side.

Good luck.


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Old 01-07-2011, 03:02 PM   #43
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A lot of the E46 M3 guys use Ar20 or AR25 resonators to eliminate rasp, if some of you don't like how your car sounds with headers you could look into welding those into the exhaust.

Sorry for the slight thread jack; is anyone running headers with high flow cats? What type of power gain do you see with this type of setup?
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Old 01-07-2011, 11:43 PM   #44
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Originally Posted by estrellajon View Post
Same flange on the bottom where the stock headers connect to right?

Thanks





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Yes, Bimmerbrakes headers have same flanges for 325/330 ONLY to connect to OEM exhaust and they are same length, so there wont be any gap (unlike some other headers that will have upto 4" gap because they are too short).

Thats why I recommend bimmerbrakes headers , hassle free install.
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Old 03-12-2014, 03:55 PM   #45
Sedan Hussein
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A lot of the E46 M3 guys use Ar20 or AR25 resonators to eliminate rasp, if some of you don't like how your car sounds with headers you could look into welding those into the exhaust.
Ancient bump but I'm looking to figure out a good setup for headers+ZHP exhaust.

Anyone put ar25's on their non-m?
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Old 03-15-2014, 09:00 PM   #46
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Headers with stock ZHP exhaust = rasp
Headers with ZHP exhaust and x-pipe replacing middle resonator = rasp
Headers with Magnaflow cat-back 16533 = little bit of rasp
Headers with magnaflow cat-back 16533 and an xpipe muffler in place of the xpipe = no rasp

But will say the headers + magnaflow setup is louder than the headers + ZHP setup. But it has much improved tone (no more rasp).

At this point I feel I've gotten it as quiet as possible, with no rasp, and I've considered going back to headers with cats, like the magnaflow headers. I'm leaning this way because even with 3 mufflers in my magnaflow system, paired with the headers, it still seems a little loud. This is a classy car IMO, and I just wish it was closer to stock quiet.
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