I had a high school friend.
Bought a very nice Duster But was stock 318. It did have headers so had 2 pipes and muffs. Only things done other than very, very nice paint, wheels, air shocks were:
He drilled 2 holes in the 2 mufflers. And on a Friday night before going to the hang out spot Turned the timing, lowered the idle. And a block away pulled one spark plug wire. Man that car looked and sounded great.
Rest in Peace Mopar Joe.
Note he called himself Mopar Joe since he loved Mopar we joked back with SlowParJoe
My car was 3-4 maybe 5 colors of primer, but was taking the cars out at the street races.
White Trash Street Racer.