[DWilbur]

Only one way to find out give it a try. I ran 3" duel exhaust 40 series Flow masters in my 84 Chevy 454 engine about 300 hp and it worked good at idle it was quite at full throttle I gat a couple of tickets. I installed 3" exhaust in my 73 Plymouth 390 stroker motor and it is way to loud at idle or full throttle. for my 71 Chevy I installed 2-1/2" duel exhaust with Magna Flow mufflers it will be a while before I get it running. Then theirs my Ram 2500 4" single exhaust straight pipe with tuner and it runs like a bat out of hell and quite at idle not bad at full throttle.