straight pipes
Former Vendor of MBWorld
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From: CA working like a slave
C63 AMG Arctic w/ Stage 1 Tune, DoubleXX pipe, MCD-631X coming soon
A good tune like Kleeman, Asura/Singh, MHP etc., will solve that issue. Also, if you use our 2nd cat X-pipe you will not throw a CEL as the ECU will not detect it, but if you remove the main cats, you WILL get a CEL. our new LT header design will not cause a CEL either due to it's design as well.
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Joined: Mar 2010
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From: Taiwan
Supercharged E92 M3
now the the theory of the double x-pipe is tying to create turbulence so you get back pressure hence more power and torque through out the power band.
but you have to notice the double x-pipe is a very nice design. for a stock ecu set up and is maybe better for most users. (I think)
if you going to go for bigger HP in the future I think it is better for you to go bigger in diameter on the exhaust pipping like 3'' or 2.75''
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Joined: Oct 2008
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From: Palos Verdes
'09 C63
yes and no.. If you just chop them out you will get a CEL indicating "cat inefficiency" code, but this is not due to backpressure.
A good tune like Kleeman, Asura/Singh, MHP etc., will solve that issue. Also, if you use our 2nd cat X-pipe you will not throw a CEL as the ECU will not detect it, but if you remove the main cats, you WILL get a CEL. our new LT header design will not cause a CEL either due to it's design as well.
A good tune like Kleeman, Asura/Singh, MHP etc., will solve that issue. Also, if you use our 2nd cat X-pipe you will not throw a CEL as the ECU will not detect it, but if you remove the main cats, you WILL get a CEL. our new LT header design will not cause a CEL either due to it's design as well.
Former Vendor of MBWorld
Joined: Jan 2009
Posts: 600
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From: CA working like a slave
C63 AMG Arctic w/ Stage 1 Tune, DoubleXX pipe, MCD-631X coming soon
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Former Vendor of MBWorld
Joined: Jan 2009
Posts: 600
Likes: 0
From: CA working like a slave
C63 AMG Arctic w/ Stage 1 Tune, DoubleXX pipe, MCD-631X coming soon
Former Vendor of MBWorld
Joined: Jan 2009
Posts: 600
Likes: 0
From: CA working like a slave
C63 AMG Arctic w/ Stage 1 Tune, DoubleXX pipe, MCD-631X coming soon
MBWorld Fanatic!
Joined: Jul 2009
Posts: 1,749
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From: PNW
'15 VW GTI
1. So you don't need a reflash? I thought you needed one to take advantage of the increased exhaust flow, but are you saying that the ECU would adequately adapt?
2. When do you expect some dyno results?
3. When do you expect these to be able to ship?
Thanks!
