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Old 06-17-2018, 02:50 PM   #1
Rat
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Ebay Headers

Ok, I know this has been brought up before and a lot. I currently have a bone stock f22a1 and I just want to get a little bit more out of it. As is I need a new one. Ive read a lot about the stock a1 headers and I know that the a4 will give me a bit more power, but my local scrap yards either do not have any or are asking $75+ for one. So I was wondering if one the cheap ebay sets do or should I just buy the scrap yard one?
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Old 06-18-2018, 12:45 PM   #2
wtfisafleek
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It's not worth the hassle IMO. The one I got didn't fit to the head very well, and it was made to sit way to close to the A/C lines than I would've liked. I ended up getting an A6 piece.

Keep in mind the A6 has the two pipe collector, so you'll need to get one of those should you choose to go that route. I think the A4 does too.
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Old 06-18-2018, 01:33 PM   #3
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Whatever you do, do not buy any exhaust parts from DNA Motoring lol. Trash.
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Old 06-18-2018, 03:04 PM   #4
Rat
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Thanks for your input. Im probably going to grab one from the scrap yard, it will probably be easier. I'll be sure to check the collector before I do anything. Thanks for informing me about that.
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Old 06-18-2018, 08:26 PM   #5
fleetw00d
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Just to confirm, both the A4 (welded tubes) and A6 (cast) exhaust manifolds are a 4-2 design that requires a 2-1 flex pipe (A pipe) instead of the 4-1 A1 manifold with single pipe A pipe. The mounting flange on the A4 and A6 manifolds that mates with the A pipe are identical, so either one can be used (I have an A4 manifold on my A6 with OEM downpipe from an EX). Note also that on the A1, the O2 sensor is mounted at the bottom of the manifold itself; on the A4 and A6 is it mounted in the single collector pipe just ahead of the flex section. I think Jarrett already mentioned in another thread that you will need to extend the harness to reach it. If I am not mistaken, the catalytic converters are also a different length between the A1 and A4/A6. LX/DX is 13" long, EX/SE is 14"; I also don't recall if the difference is made up in the pipes ahead of or behind the cat which can affect how well your exhaust follows the shields under the car.
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Last edited by fleetw00d; 07-07-2018 at 10:39 PM.
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Old 06-21-2018, 01:09 PM   #6
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fleetw00d always with the great info!
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