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Thread: Courtney Z20LET High performance front pipe

  
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    Courtney Z20LET High performance front pipe

    Has anyone got one of these?

    If so, how was the fitment and what was the benefit? Also what size is the down pipe 57 or 63 (to settle another debate)?

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    re: Courtney Z20LET High performance front pipe



    The thing on the left

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    Check out this link - it discuss the topic fully including various applications and how the same pipe compare from different manufacturors/venders ie Courtney, Regal and Milltek.

    http://www.m1gst.com/phpBB2/viewtopic.php?t=17896

    All your questions ought to be answer in that thread - if not just add to it
    Happy reading - theres 5 pages of it so far!!
    Me run tings.... not tings run me!

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    re: Courtney Z20LET High performance front pipe

    thanks T-bone.

    still want to know the sizes though

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    Did any of you guys get a boost gain with this mod?

    I swaped my pre cat with a 3 inch dump pipe to a 3 inch mandrel felx into a 3 inch flex 3 inch wide body high flow cat and a 2.5 system the rest of the way.
    After i got the amd, i noticed that when hitting redline in 3rd (and i presume 4th gear) at 15psi my boost sometimes spikes to 17psi then drops back down, and my engine light comes on.

    Have you guys had the same proble,m?? ops:

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    Jass your getting a boost spike because your exhaust is too free flowing, basically the gas is finding it easier to go through the compressor wheel rather than through the wastegate , which means it produces more boost, this causes your boost spike and ECU light. But i don't see why its happening at redline ??, could be a mapping problem instead. Best talk to AMD m8.

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    Thanks Manch, i thought maybe it could have been the fact that my precat is too big, the one from regal is only 2 3/4 right? Same size as the original pipe from factory.

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    The courtenay one is 73mm ID i think, which matches the exit of the turbo. And yours would be 76/77mm ID?, I wouldn't of thought it would be too large. If its happening at redline then its more than likely a mapping problem.

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    re: Courtney Z20LET High performance front pipe

    i had one from regal and they were machined wrong, it started blowing, i've since had it changed and would be interested to see if there is a gain since i was on the rolling road
    Audi B5 RS4 Quattro 451bhp. 479lb/ft

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    How much is the one from regal?

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