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Old 09-05-2006, 10:00 AM
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ljnlaw ljnlaw is offline
Join Date: Dec 2005
Location: The Land of REAL Cheese Steaks...And the home of the 2008 World Series Champion Phillies
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Of course I did not mean just throw on headers without an exhaust...however from what I understand from many in the bizz including Turner Motorsports, Metric Mechanic, etc. the place you create the most hp (from the engine to the pipes) is straight out of the engine (i.e. the headers) you are not going to get any real gains with an exhaust system. While I don't know anything about the M5 exhaust system other than what I have seen, these are the general rules: You have to create a way to get those hot gasses out as quickly and efficiently as possible. Headers and jet hot coating are not just BS they work...exhaust systems may sound great but they really don't do much for improvements in hp. Just my .02
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