Do long tube headers require a different midpipe?
Thread Starter
Instructor
Joined: Mar 2017
Posts: 122
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From: Ocala, FL
Do long tube headers require a different midpipe?
I'm considering getting an X pipe now to ditch the rear cats but I also want to do long tubes within the next year. Do they need special length mids or will they fit with stock length?
Safety Car
Joined: Mar 2004
Posts: 4,048
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From: South Florida
ARH Midlength headers will fit any OEM style Xpipe. I ran ARH Mids and Borla catless X on my 2015 Z51 and it fit just like OEM. Any long tube header will need a non OEM X pipe which is typically supplied by the header manufacturer as mentioned above.
Pro
Joined: May 2017
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From: Machesney Park IL
No tune needed? Any loss of power?
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,476
From: South Florida
No tune needed with the midlength headers as it retains the factory O2 functionality as long as you get the catted version. However, as with any aftermarket piece, you are leaving power on the table without a tune. I can't say if it reduced power or not on the stock tune because I tuned my car for the headers. I didn't have to change any fueling but I did add timing in the mid range RPM area to take advantage of the additional exhaust scavenging. Based on that info, I would assume you would pick up power across the board in the stock calibration since fueling was pretty much unchanged.
Safety Car
Joined: Mar 2004
Posts: 4,048
Likes: 1,476
From: South Florida
Pro
Joined: May 2017
Posts: 518
Likes: 184
From: Machesney Park IL
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Safety Car
Joined: Mar 2004
Posts: 4,048
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From: South Florida
If you buy "brand A" X pipe that bolts up to "brand A" headers, it will not bolt up to the OEM manifolds. So essentially you would buy an x pipe that you cannot use until you buy their matching headers. I don't think this is what the OP necessarily wanted to do. And the information provided with "buy a Corsa X Pipe" was quite ambiguous IMO. I was clarifying that he cannot just put this X pipe in the car without the headers. If you actually read the OP's post, his goal is to remove the rear cats only at this time.
Last edited by Internets_Ninja; Jul 28, 2019 at 10:18 AM.
