help with 318 exhaust

i agree open headers are basicly for race, have been driving with it some nights but it doesnt sound soo good and it anoys people alot:(
think 2 1/4" is good enough but i would go for 2 ½" all the way back to have some left if you decide to make more power in the future;)
for a cool sound and pretty cheap chambered mufflers i would try the flowtech afterburner mufflers or their terminator, they sound good and i have sold lots of them here in sweden without complaints about how they sound but that depends on what sound you like...