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Size DOES matter

Please help!!!!

This is the second time Im enquiring about the size of my exhaust pipes.

Does anyone have an idea what the ideal diameter should be from the cats onwards up to the back boxes? At present 60mm ones do not work OK and I really need to know the correct size please.

 

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    join in on the mongoose group buy wink.gif

     

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    I feel the need, the need for speed!

     

    myzx2.jpg

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    2.5 inch or 63.5mm is the ideal size with stock turbos.

     

     

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