E46Fanatics - View Single Post - Andy's HPF Stage 3 "SLEEPER VERSION" w/833rwhp SAE on Race+Meth
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Old 04-03-2012, 04:00 PM   #10
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Join Date: Feb 2008
Location: Fort Lauderdale
Posts: 1,827
My Ride: M3 HPF Stage 3
So, why have a Stage 3 and a 4 inch exhaust? Perhaps only under the most extreme builds or simply wanting the nioise all the time.

The numbers are too good not to go this way of the sleeper exhaust in almost all cases. An on demand exhaust cut out can always be added for what ever reasons. Sounds like best of all worlds.

Chris, how would the car sound by substituting a Borla V2 Mid pipe(deeper tone?) Will that flow as well or better than the OEM STOCK SECTION? What about no mid pipe? Would it drone with no mid pipe?

Last edited by Bdave; 04-03-2012 at 04:07 PM.
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