Discussion Starter · #1 ·
I am considering some new mufflers for my 2012 GT 5.0 Vert (6MT, 3.73, FRPP Tune/K&N). I really like the GT SVT the best, then the Borla Touring and Cora Sport (not looking for anything too loud). I have been told that axile backs will NOT increase HP by themselves. However, Cora sport axile backs web site states an increase of 7HP & 4lbs-ft Torque with 154% better flow and 18lbs lighter than stock for the GT 5.0L. So what do you think are the Cora claims true? Any test data done? Will I see the same increase with the GT500 and/or Borla mufflers. If it is true, I may have to go with Cora a lot more $$, but I do like getting better sound and little performance bump. Thanks.