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      12-18-2012, 04:11 AM   #20
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Drives: 2008 A22 E90 M3 DCT
Join Date: Apr 2009
Location: Hong Kong

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Quote:
Originally Posted by M3GTC View Post
Stage 1 and 2 are pretty similar I'm currently running stage 2 and it's awesome even though I have my cats still (reason for stage 2 car delete very soon).

But stage one is for cars still with primary cats and stage 2 is a cat delete tune
Yes my cats are still in place

I am only running an axle-back and only plan on an addition of a MS stage II intake or K&N/AA drop-in