Yea, but who was faster to begin with? Just a question...I also have a Flowmaster 40 in place of the stock muffler with the resonator removed. I also have an ADM CAI and tune and I ran my friend in an '07 who's stock except for a Corsa catback and he's slightly faster. Needless to say I was pretty pissed off ...I talked to Andy at ADM and he had told me that he had a similar chambered muffler on his setup and he couln't make any power. So he ended up puting a straight through catback (ie. The stock muffler, the Corsa and Stainless Works setup) and he gained 35 rwhp! Anyways, I have a Stainless Works LMF catback on the way. I'll let you know in a few days if it really makes a difference.
the stock system is 2.75 inches and over the rear axle is where the flow gets cut bad. Its like gm crimped the exhaust tubing.i have a knockoff flowmaster on mine, its called a flowzilla, im thinking about taking it off and putting a magnaflow or somthing on, or just get a piece of pipe welded in, how loud are these trucks with no muffler and the resonator still in place?
got any pics? im definately interrested. does this replace the muffler or the resonator? im wanting to replace my flowmaster muffler, not very happy with the sound. let me know. thanksthe stock system is 2.75 inches and over the rear axle is where the flow gets cut bad. Its like gm crimped the exhaust tubing.
If you have stock headers and put that kit in that im selling the sound is fine and all 3 inch. 100 plus shipping bro
Mike for comparisons sake, I don't think it's the flowmaster that's robbing THAT much power. I have an '06 AWD and it dynoed (same shop) 314/337 w/ just Matt's intake/tune and the same exhaust set up you have.The reason I asked was because I have a flowmaster w/ res delete. I ran a baseline before mods installed. I was disappointed in the baseline numbers. 284hp and 292tq. that is horrible. keep inmind this a 2wd 2007. Then I got e-fans installed, MAC CAI, Tunetime performance tune, trans cooler and after 5 pulls the best was 301hp and 314tq on a mustang dyno. call me crazy , but i expected way more. I believe that the flowmaster and a IAT of 110 degree played a big part. I ordered a HSRK today from vector. NORCAL send me some pics on this exhaust your talking about.
Shawn they installed a 2 1/2 flowmaster on his truck Not a 3 inch like yoursMike for comparisons sake, I don't think it's the flowmaster that's robbing THAT much power. I have an '06 AWD and it dynoed (same shop) 314/337 w/ just Matt's intake/tune and the same exhaust set up you have.