Badger5JMB Retrofits
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  1. #1
    Reverse Gear

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    Oct 2009
    Location
    West London
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    19

    A4 2.5 TDI V6 180, De-cat?

    Hi guys,

    in need of some help here, i have been hearing many different opinions from people on this so see what your guys input is.
    I am thinking of a exhaust system for my audi a4.... I was thinking to de-cat it, with a full through 2.5" pipe without back boxes aswell?

    People have been telling me this will affect back pressure, and being a diesel i will loose torque? So i need some input before i proceed with anything.

    Thanks look forward to hearing from you guys


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  3. #2
    6th Gear

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    Join Date
    Jul 2007
    Location
    London
    Posts
    3,247
    Thats a load of rubbish ! If yours is the 180Bhp, then i will start by loosing the pre-cat (evil contraption) then i will move onto the main cats . Take them off and hit the innards with a long metal rod/copper pipe and get rid of the monolith inside. The noise wont increase and the turbo will spool quicker. It will also pass the Mot test as well...
    FOR SALE:
    -Golf mk 5/audi a3 1.6 FSI fuel pump, brand new genuine part boxed + seals
    -audi a3 (1998 to 2003) genuine clutch slave cylinder to fit 1.6 engines BRAND NEW
    -Rear bush press tool to fit new rear axle bushes on Golf Mk3/4, Audi a3/S3, Seat Leon/Toledo, Skoda Octavia mk 1/2 used once

 

 

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