Flowmaster 10 series....
i think flowmasters dont sound very good on LS4's IMO, i would try - thrush welded mufflers, borla, magnaflow, maybe a dynomax bullet if you wanna get nasty. im just not a fan of flowmaster.
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Joined: Feb 2011
Posts: 122
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From: lebanon, mo
I left the resonator on and just lopped off the mufflers. It sounds good and isn't too loud.
Http://www.youtube.com/watch?v=vwzuSw_ORRc
Http://www.youtube.com/watch?v=WXxF-fGae04
Http://www.youtube.com/watch?v=vwzuSw_ORRc
Http://www.youtube.com/watch?v=WXxF-fGae04
Basically, Flowmasters sound like hammered ****. My favorite exhaust on the LS4 car was the Spintech mufflers in a custom 3" system I had. When I went with the catless DP, I installed a Dynomax bullet because I couldn't stand the rasp and lack of tone. When I sold the car, I had the Super 44s back on the car with the catless DP and I was reminded of how it sounded like a wounded truck/boat. Don't even think about the 10 series...will sound terrible the more the car is modded.
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Verdad Gallardo Basically, Flowmasters sound like hammered ****. My favorite exhaust on the LS4 car was the Spintech mufflers in a custom 3" system I had. When I went with the catless DP, I installed a Dynomax bullet because I couldn't stand the rasp and lack of tone. When I sold the car, I had the Super 44s back on the car with the catless DP and I was reminded of how it sounded like a wounded truck/boat. Don't even think about the 10 series...will sound terrible the more the car is modded.
Basically, Flowmasters sound like hammered ****. My favorite exhaust on the LS4 car was the Spintech mufflers in a custom 3" system I had. When I went with the catless DP, I installed a Dynomax bullet because I couldn't stand the rasp and lack of tone. When I sold the car, I had the Super 44s back on the car with the catless DP and I was reminded of how it sounded like a wounded truck/boat. Don't even think about the 10 series...will sound terrible the more the car is modded.
You guy's seem to really stand by the 3in exhaust,did it help out with losing torque down low and did you guy's really feel it up top rather then going 2-1/2in?
When I had the car tuned with a catless DP, the car totally woke up. Torque down low was just as snappy as stock (as if we need more power down low
) but higher in the RPM range the car breathed much better. I could actually race out of second gear at around 50-60 without having that dreaded 40-60 dead spot. 
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Teching In
Joined: Dec 2010
Posts: 7
Likes: 0
From: Springfield, il
nice input guys, i checked out the dynomax bullets and the spintech on youtube! Now having a hard time deciding..lol both sound alot better then the flowmaster series. keep the feedback coming!
Catless cats?
