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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > stock headers cost?



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      01-08-2013, 05:25 PM   #1
SDemetris
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stock headers cost?

Has anyone else got a quote on stock n52 headers? I was given $400 for catless ones or $520 for ones with the catalytic converters in tact.. does this sound reasonable?
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      01-08-2013, 06:04 PM   #2
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520 doesnt sound too bad assuming all this is brand new.
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      01-08-2013, 06:16 PM   #3
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No these are from a wrecked car. I was gonna cut the cats out and have some homemade catless headers since i read that racing teams got the best results by doing that compared to super sprint ones.
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      01-09-2013, 09:39 AM   #4
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keep on craiglist than man.... id bet you can find them cheaper. since you dont care about the cats offer 350 for the catless ones..... see what happens.
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      01-09-2013, 10:58 AM   #5
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Or PM people who posted stuff about putting on aftermarket headers, maybe they have their headers just laying around in their garage?

Good Luck!!
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      01-09-2013, 10:58 AM   #6
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Quote:
Originally Posted by SDemetris View Post
No these are from a wrecked car. I was gonna cut the cats out and have some homemade catless headers since i read that racing teams got the best results by doing that compared to super sprint ones.
You have the link?
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      01-09-2013, 12:33 PM   #7
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No these are from a wrecked car. I was gonna cut the cats out and have some homemade catless headers since i read that racing teams got the best results by doing that compared to super sprint ones.
i did this to my headers, just use the ones you have, it takes like 11 hours without propper tools, such as a boss welder and a pipe bender
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      01-09-2013, 01:49 PM   #8
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You have the link?
No I couldnt find it. but either way I dont want SS/MMW ones because even if they give me an extra 5 HP compared to a stock setup, they are all obscenely loud in all the videos i have heard and I dont really want that
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      01-09-2013, 02:02 PM   #9
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No I couldnt find it. but either way I dont want SS/MMW ones because even if they give me an extra 5 HP compared to a stock setup, they are all obscenely loud in all the videos i have heard and I dont really want that
you have to consider the stock setup. main cats - big bottleneck and reduce flow/muffle sound, 2nd cats - same, stk res- reduce rasp, stk muffler - reduce sound...


so you have 4 sections reducing noise. If you put on catless headers, say a virbrant res and semi quiet muffler it would prolly sound like a catback setup.

all the setups you ve prolly heard are single, free flowing mufflers which is why its so loud.
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      01-09-2013, 02:06 PM   #10
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yeah. I suppose if I took off the primary cats I could put a resonator on before my PE exhaust muffler.. BTW, Mapleridge might be producing those headers that he put on his N52B25. Does anyone know off-hand if those will fit on my 3.0L or do I have to click the whole way over to real OEM to see if both engines have the same part number for headers?
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      01-10-2013, 12:03 AM   #11
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yeah. I suppose if I took off the primary cats I could put a resonator on before my PE exhaust muffler.. BTW, Mapleridge might be producing those headers that he put on his N52B25. Does anyone know off-hand if those will fit on my 3.0L or do I have to click the whole way over to real OEM to see if both engines have the same part number for headers?
3.0l and 2.5l have the same cats. They will fit. I wouldn't pay more than about $400 for used cats. I haven't checked realoem to see if xi and i models share the same cats but I am going to send a set to desi4life to fit to his car when I get a finished set.
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      01-10-2013, 03:13 PM   #12
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3.0l and 2.5l have the same cats. They will fit. I wouldn't pay more than about $400 for used cats. I haven't checked realoem to see if xi and i models share the same cats but I am going to send a set to desi4life to fit to his car when I get a finished set.
ok. i'll have to look under my car to see exactly where the front axle and everything are but I think theyre far enough in front of the engine and headers that it shouldnt affect anything.
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      01-10-2013, 03:16 PM   #13
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Just an FYI, my local recycle center buys BMW primary cats for $120 each. So that is $240 for the cats. Good way to recoup the cost of getting them cut out and welded pipe back in.
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      01-11-2013, 01:48 AM   #14
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Just an FYI, my local recycle center buys BMW primary cats for $120 each. So that is $240 for the cats. Good way to recoup the cost of getting them cut out and welded pipe back in.
Thats a steal.
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      01-11-2013, 10:45 AM   #15
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Any idea for secondaries? Im getting them off right now and am going to take them to a scrap yard. Dont want to get ripped off afterall
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