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Guide for modifying a 4x4 downpipe when running a 2wd manifold?

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Old Jan 19, 2012 | 09:03 PM
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Default Guide for modifying a 4x4 downpipe when running a 2wd manifold?

Going to be running a T4 with 2WD manifold on my saph, I know the downpipe won't fit properly and will need to be modded, can anyone tell me what needs to be done???
I'm aware I need to chop a section out/shorten it, but how much?
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Old Jan 20, 2012 | 07:41 PM
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I always thought you had to lengthen the exhaust to make sure it clears the front prop????
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Old Jan 22, 2012 | 10:05 AM
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I may need this info as well. Will be keeping an eye on this thread.
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Old Jan 23, 2012 | 11:06 AM
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So will I, hoping someone replies....
Won't need to mess with the exhaust at the prop area, I'll be modifying a 4x4 downpipe, so the area where it meets the prop should be the same, as far as I remember if you twist the exhaust from the engine bay you orientate the prop clearance from there. Trouble with running a 2wd manifold is that the turbo sits further back than it would do with a 4x4.
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Old Jan 23, 2012 | 03:48 PM
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Here you go

Originally Posted by Martin-Hadland
I have had this problem with a T4 fitted to a 4x4 using a 2wd manifold and Mongoose exhaust, the cure was to remove about 20mm from the downpipe as it comes out of the turbo and then put that 20mm band back into the downpipe as it goes downwards.

Originally Posted by trevCOSS
All sorted thanks for the advice Martin

Chopped it up







All welded back together



Fitted and pleanty of clearance

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Old Jan 24, 2012 | 03:35 AM
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Dude that's JUST what I need!!!!
Many thanks, that's just perfect!
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