I dont think I ever heard 10's and was just wondering if they sound like 40's but just louder
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never heard of 10's

 

Yeah 10 series flowmasters
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Yeah there's a sound clip on this forums with a 4.6L GT. 40's sound like Rice Cakes and the 10's sound way worse. They sound like there's no mufflers with tons of baffling goin on. Real sloppy soundin! I have had many props for my Magnapacks which are really deep and clean. I have only had my car out 4 times and props everytime it's been out! Borla's and Magnaflow are the only way to go. If you have 40 series, toss them like I did. I will never own, let me repeat...I will NEVER own Flowmasters ever again after hearing my Magnapacks set-up. I fell in love!

 

I planning on getting a new cat back, But yes im going to ask cause im too lazy to look 4 myself -- how much for the Borla cat back
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Got 10s on my Lightning and it is THE BEST SOUNDING FLOWMASTER SETUP ON A LIGHTNING to date.......I have One Chamber IMCOs on my Stang and they sound GREAT!!!!!

Later

 

you heard a sound clip of the 10's? i know for a fact 95 percent of sound clips are from cell phones (i admit i have done it) and no wonder you think the 10's sound like sh*t. im running 10's on mine and they arent nearly as loud as lm1's or 2's. the 10's dont even begin to get too loud until you hit 3 rpms, other than that its the deep muscle car rumble. dont comment on how bad the 10's are unless youve actually had a 1st person experience with them, however the 40's i do believe are garbage on mustangs. on top of getting the 10's try running it with 2.75 inch piping and a catted h-pipe. i dont get comments on my exhaust, just comments on whatbuilt engine im running because they hear the exhaust (and assume the 4.6 isnt capable of the rumble it gives off). enough said.

 

I've got one chambers (10 series) on mine and love the sound! It isn't the typical Flow sound but very deep and sounds amazing at WOT.

 

Borla makes an exhaust system for the mustang? i couldn't find it on their website

 

i'd go with 40's....pure sex

borla exhaust on a mustang is great also...its really deep

some guys like to hear the cams better so they switch from borla to slp or something along those lines though