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The Showroom
This is the place to show off your BMW to other members of the community. Post pictures and videos of your car and the modifications you have done to it. If you need a picture of something on a coupe, sedan, convertible or touring you will probably find it here!

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Old 01-10-2013, 12:48 AM   #1
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BimmerBrakes Stainless Steel Headers [E46 Non-M](Pics and Videos)

Website: BimmerBrakes
Vehicle: 2004 325Ci
Mod: BimmerBrakes SS Headers

Hello Everyone! I just recently bought Headers from Bimmerbrakes.com and I am so delighted With how the headers are; The headers are amazing and sound great! The power was an instant gain and most definitely a feel of gain in power. The fitment was so perfect from the OEM Manifold to the OEM Mid-pipes, No welding needed cause they fit Perfect as said! the O2's fit real snug but they all fit perfectly. The Quality of the SS Headers are amazing and especially for the price! It's a must get for the M54! Also I got them in Extremely fast and The Owner(Anthony) is an Awesome guy and will help you out with anything! Thanks again!

Quote:
Rating:
Shipping Speed: 10/10
Communication: 10/10
Accuracy on description: 10/10
Fitment: Exact fitment like OEM; all O2 sensors fit perfectly. 10/10
Here are a couple of pics of the headers and fitment/installed(sorry for pic quality and took horrible pictures lol)











Here are some videos that I took the same day after installation.(Now I'm going for the Raspy exhaust cause I like rasp! so the rasp is also coming from it being Straight piped from the catless headers back with both resonator deleted and Flowmasters at the end.)





I will Update some later of Idle and other videos, Thanks Everyone for viewing! Have a nice day!

[UPDATE] 2/1 Video
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Old 01-10-2013, 01:46 AM   #2
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Dam, that sounds nice man. Im probably gonna pick up a set myself.
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Old 01-10-2013, 02:40 AM   #3
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Did you use the gaskets that came with it? And did you reuses? Bolts or purchase new ones?

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Old 01-10-2013, 06:48 AM   #4
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The sound is really good and love it.

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Did you use the gaskets that came with it? And did you reuses? Bolts or purchase new ones?

-Snowball
Yes I did, everything fit perfect.
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Old 01-10-2013, 06:52 AM   #5
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That is LOUD!

Are these Technik or SS reps?

When did you purchase them? Are they the new Bimmerbrakes version?
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here today, gone tomm

i spend it while i can, if i run out i'll swallow all my meds
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Old 01-10-2013, 07:02 AM   #6
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Old 01-10-2013, 07:14 AM   #7
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That is LOUD!

Are these Technik or SS reps?

When did you purchase them? Are they the new Bimmerbrakes version?
SS Reps, and yes it the updated version. They sound incredible!
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Old 01-10-2013, 07:59 AM   #8
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How much HP did you gain? Also, do these work with aftermarket after-header cats?
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Old 01-10-2013, 08:09 AM   #9
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How much HP did you gain? Also, do these work with aftermarket after-header cats?
I can't really tell you precise cause I haven't dyno-ed it yet, but it's kinda like when you add a CAI but 2x the power. So it's a good 12-18hp easily from how I feel it, and these headers are on a 325Ci I could imagine the power gain on a 330/ZHP. And I really can't tell you if it will work with aftermarket cats but I was planning to do that before I just went Catless, but I say as long as you get the cats in the mid-pipes your good but I'm not sure, I've been hearing that the o2's have to be in a certain place to pass emissions. Good luck!
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Old 01-10-2013, 08:35 AM   #10
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Gotcha. Yeah, I wouldn't mind getting an O2 sim or coding it or something, but I am trying to maintain the same functions on my car, cats and all I'll probably do this project in the future and get them ceramic-coated.
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Old 01-10-2013, 08:55 AM   #11
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I was thinking about heat wrapping them but nahh, but I'm only getting o2 connector codes right now cause I cut them and sent them to a friend and he's gonna put heater circuits on them and I'll be passing emissions soon. So not worried. But I wanted to get some stainless steel mid-pipes with aftermarket cats but I'm doing good right now.
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Old 01-10-2013, 09:05 AM   #12
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Do post-cat O2 sensors affect fuel trim at all, or do they merely monitor cat efficiency? I've read different reports on different websites that some car brands do and some car brands don't.
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Old 01-10-2013, 09:17 AM   #13
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Do post-cat O2 sensors affect fuel trim at all, or do they merely monitor cat efficiency? I've read different reports on different websites that some car brands do and some car brands don't.
It wouldn't make sense for those to control fuel trims. In order to control fuel trims post-cat you would have to make an assumption about the cat's performance which is why that sensor is there in the first place; to check the cat's performance.

Does anyone know about some in-line cats that can be fitted after these headers? About how much do they cost? I like the idea of headers, but I don't like to spew untreated exhaust into the air.
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Old 01-10-2013, 10:16 AM   #14
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It wouldn't make sense for those to control fuel trims. In order to control fuel trims post-cat you would have to make an assumption about the cat's performance which is why that sensor is there in the first place; to check the cat's performance.

Does anyone know about some in-line cats that can be fitted after these headers? About how much do they cost? I like the idea of headers, but I don't like to spew untreated exhaust into the air.
I was getting them the other day but they cleared out real quick after a while, I have a scanner so I will check it in a little bit and update you guys on it.
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Old 01-10-2013, 10:31 AM   #15
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The only codes I'm getting right now are the Post-O2 sensor connectors cause like I said in one of my posts from above that I cut them and sent them to a friend and he's gonna put heater circuits on them and I'll be passing emissions, So those codes will clear out and I noticed that my Lean codes (P0171,P0174) went away for some reason..
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Old 01-10-2013, 05:43 PM   #16
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Im in california and I think theres laws against it, that would make me fail a smog test right? Im still gonna do it though, but I'd have to do the heater circuits thing too? Assuming I can find someone to do it.
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Old 01-10-2013, 05:47 PM   #17
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Im in california and I think theres laws against it, that would make me fail a smog test right? Im still gonna do it though, but I'd have to do the heater circuits thing too? Assuming I can find someone to do it.
Yes, I think you'll def fail smog testing in CA. They hook it up to the tester there, right? You'd need some downstream cats for it, which is the correct way of doing it. But it seems like "being green" is frowned upon in the car world and usually meets with responses of being a pansy
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Old 01-10-2013, 06:01 PM   #18
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yes, i think you'll def fail smog testing in ca. They hook it up to the tester there, right? You'd need some downstream cats for it, which is the correct way of doing it. But it seems like "being green" is frowned upon in the car world and usually meets with responses of being a pansy
lol
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Old 01-10-2013, 06:04 PM   #19
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Yes, I think you'll def fail smog testing in CA. They hook it up to the tester there, right? You'd need some downstream cats for it, which is the correct way of doing it. But it seems like "being green" is frowned upon in the car world and usually meets with responses of being a pansy
Very true.
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Old 01-10-2013, 07:49 PM   #20
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Yeah you will fail the smog test no matter what hahaha. Here's another video of the car,
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