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Thread: Exhaust size!!?

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    Default Exhaust size!!?

    What size do you have on your exhaust!? I'm building a completely new exhaust system with catalytic converter and all, do you think I should build in 2.5 "or 3"? The engine is standard with larger intercooler, another manifold and a chip in the future ...
    Crister Borg
    Kalmar, Sweden
    Alfa Romeo 155 q4 -93

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    2.5 is good for your setup. 3 is used if u have heavy tunned engine.

    U can allso read this : http://forum.berlinasportivo.com/showthread.php?t=1110
    Last edited by colibry; 24-10-14 at 09:10.

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    Thanks! 2,5" it is then!
    Crister Borg
    Kalmar, Sweden
    Alfa Romeo 155 q4 -93

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