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      12-12-2012, 01:22 AM   #57
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Drives: 2013 335i M-Sport
Join Date: Aug 2010
Location: Phoenix, AZ

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Quote:
Originally Posted by GTM_Challenge View Post
Our dynos have been on tests with out full exhaust only at the moment. The HFC model has a 200 cell high flow cat on it which will still filter some emissions where the other has the cat completely removed for the highest flow possible. There should only be about a 5 HP difference between them with basic mods
What HP and torque gains would you see from a HFC dp only? Same question but for the cat back only too?