67-69 owners interested in Flowmaster's new 3" exhaust system
07-06-2004, 05:50 PM
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67-69 owners interested in Flowmaster's new 3" exhaust system Link to the post in the 67-02 Camaro forum, just figured some Firebird guys/glas might be interested 
https://ls1tech.com/forums/chevrolet-camaro-1967-2002/189077-anyone-considering-new-3-1967-69-f-body-flowmaster-system-inside.html
Derek
https://ls1tech.com/forums/chevrolet-camaro-1967-2002/189077-anyone-considering-new-3-1967-69-f-body-flowmaster-system-inside.html
Derek
07-10-2004, 02:25 PM
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Hello villian. Nice rides.
Quick question for you. Did you lose or gain horsepower with you flowmaster exhaust? I have heard that many people tend to lose HP with flowmaster. Or if they gain anything it is very small. Thanks
Quick question for you. Did you lose or gain horsepower with you flowmaster exhaust? I have heard that many people tend to lose HP with flowmaster. Or if they gain anything it is very small. Thanks
07-23-2004, 11:27 PM
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when installing the first 3" system with turndowns, I gained 12 hp over my old 2-1/2" system that also has flowmasters. As mentioned in the info, the new system with tailpipes only cost me .9 rwhp on a dyno, and added about 35 lbs of weight. I'm sure correct muffler selection is critical to this, but the car is much quieter at idle and cruise speeds, while being close to the same level of noise at WOT.
Derek
Derek
