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Old 06-18-2011, 12:03 AM   #1
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Default Flowmaster muffler , making my car slower?

hey everyone, just installed a Flowmaster muffler on my 99' nb, which is about half the size of my stock muffler. The car seems to sound really good...but noticed that it's slower... Could this be the issue? wondering if i should go back to the stock exhaust...
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Old 06-18-2011, 12:29 AM   #2
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That's okay it's a worthy trade off sound is more important. Do you has turbo? Is muffler a straight through design? What type of ecu do you have?
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Old 06-18-2011, 03:17 AM   #3
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your exhaust pulse and flow had changed which will affect your power band. betting your new muffler is a greater diameter then stock.
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Old 06-18-2011, 03:43 AM   #4
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Don't have a turbo yet, no ecu either. The design I'm not sure of , looks like a typical muffler .. I have only installed a flyin Miata clutch kit (10lbs) , raceland coilovers and complete tune up. Looks for ways to make the car stronger but didn't know this exhaust would do the opposite. Thank you guys for the inputs. Any suggestions on cheap power upgrades? Once again, thanks.
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Old 06-18-2011, 03:57 AM   #5
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Old 06-18-2011, 06:29 AM   #6
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Quote:
Originally Posted by dferrer88 View Post
Don't have a turbo yet, no ecu either. The design I'm not sure of , looks like a typical muffler .. I have only installed a flyin Miata clutch kit (10lbs) , raceland coilovers and complete tune up. Looks for ways to make the car stronger but didn't know this exhaust would do the opposite. Thank you guys for the inputs. Any suggestions on cheap power upgrades? Once again, thanks.
Dont push your luck hahaha.

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Old 06-19-2011, 08:02 PM   #7
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jeff, what type of intake is that?
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Old 06-19-2011, 09:58 PM   #8
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jeff, what type of intake is that?
Jeff_man racing.
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Old 06-20-2011, 03:35 AM   #9
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oh diy racing, lol got it
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