will i lose hp with the new exhaust?

allenpark94gt

New Member
Aug 3, 2003
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allen park
alright well i currently have straight pipes with no mufflers on my car...i have the stock 4 cats on there and just pipes back to the tips...now my question is...i just got the flowmaster american thunder catback for christmas....if i put this exhaust system on will i lose hp since i will be adding mufflers now?...any info would be great...and also a sound clip of this system if anyone has one...thanks guys
 
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