I got a 02 sc/lb truck that had a 5.3 w/ the y pipe. Im putting a 6.2l in it and want to put headers on it. Should i go with the 6.0 exhaust set up or with the 5.3 set up will the 3" back to 1 40 series flomaster w/ dual 2.5 out be enough to let the 6.2 breath?

 

parish was running just a single 3" exhaust last time I check. Hopefully that should say something

 

i just swapped my 03 1500hd 6.0 from the factory true duals to a pacesetter longtube/pacesetter offroad y pipe setup. 3 inch pipe to a borla xr-1. pretty loud. it pulls quite a bit harder than before. i dont think it makes a difference id go with a single 3 inch setup