ive got 4 1/2 inch threw a set of top ten flowmasters and back to the bumper tail pipes no crossover or x pipe car runs the same with the 80 +lb exhaust on or off 9.60s at 140+ its not quiet but then again its hard to make 600cubes quiet !!!

606 hemi pump gas best 9.60 at 142mph on motor
05 hemi daytona 1500 go-mango 4wd quadcab
2007 hotrod mag pump gas drags runner up, roadkill nights dodge big tire winner 2018 2019 back to back