is my flowmaster holding me back?
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just like the title says, i have longtubes ORY and a flowmaster. is the flowmaster restricting my horsepower? if i was to get a diff exhaust how much would it help me?
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The "chokemaster" is one of the most restrictive catbacks for the fbody. If you swaped to a hooker or a magnaflow you would probly see a 10-15 hp gain, and even a higher gain if you ever add a cam or heads/cam. One other option is to get a cutout. I had the flowmaster before my hooker and I liked the sound but just wanted more power, the cutout would make you the most power and keep the flowmaster sound for crusing.
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10-15 HP gain dude you wont gain that much someone posted a thread where they had a flowmaster and and a cut-out they dynoyed cut-out open there was a difference of 8 hp from a cutout to the flowmaster, and he had dyno sheets to prove it search it and you will find it. Just switching catbacks is not going to give you 10-15 hp the cut out didnt even do that. People spread so much bogous info and never have proof 10-15 its just your personal choice. I like how the flows sound with my setup so I'm keeping them I'm not going to fork out more money for another cat-back for 8 hp if it bothers you that much like dude above said get a cut-out.
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yeah considering you can only expect 15hp from the free flowing catbacks on the market (the 3" ones)....i doubt you'd see that much from swapping the flowmaster out.
i can see 5-7hp though.
i would just do the cutout
i can see 5-7hp though.
i would just do the cutout
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My car came with flowmasters and !cats when I bought it. I put in an electric cutout last year. This past fall I dynoed it on a dynapack dyno with the cutout open and closed, and saw a 20 rwhp increase.
Last edited by schuby87; 01-16-2009 at 09:37 PM.
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make sure we are doing apples to apples. a flowmaster crossflow aka 80 series is different from another series like say 40/50/60. two completely different mufflers.
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flowmaster will restrict your car. these guys are right. but im not sure about gaining 20 RWHP or anything. sounds a little much to me.
magnaflow, magnaflow, magnaflow.... is the way to go
magnaflow, magnaflow, magnaflow.... is the way to go
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hey I got a question all I hear is my buddy this I dynoed this anyone got some dyno graphs to prove it, if not your point holds no weight. Like I said there is a post here where someone did the test and posted dyno sheets and from cut-out to flowmaster it was a 8hp lost all that other my sisters cousins baby's car did this on a dyno please spare us the bullshit. Matter of fact here is the post check it out.
https://ls1tech.com/forums/generatio...-e-cutout.html
https://ls1tech.com/forums/generatio...-e-cutout.html
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hey I got a question all I hear is my buddy this I dynoed this anyone got some dyno graphs to prove it, if not your point holds no weight. Like I said there is a post here where someone did the test and posted dyno sheets and from cut-out to flowmaster it was a 8hp lost all that other my sisters cousins baby's car did this on a dyno please spare us the bullshit. Matter of fact here is the post check it out.
https://ls1tech.com/forums/generatio...-e-cutout.html
https://ls1tech.com/forums/generatio...-e-cutout.html
![](http://i38.photobucket.com/albums/e145/schuby87/Dyno%20Vids/Dyno2.jpg)
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and the only thing you changed in that was cut-out open I dont believe that you didnt advance any timing anything. I dont see a cut out giving you that much over any cat-back.