MAC exhaust system
 

Ok heres the deal i have an 85 gt with complete mac exhaust, the longtube headers, prochamber, off to the mac flwopath muffs, now its not as loud as i wanted it, i herd that the macs flow better than flowmasters. but why is my system so quiet, if you look below that is my mods, i think its so quiet because of the pro chamber, and by the way i dont have cats.
so if anyone can tell me why its so quiet i would apprieate it very much

I have the same setup and mine is pretty loud.

I have the set-up with MAC long tubes 1-5/8" and a regular off road MAC H-pipe and the back section is the dumps. My dad has the whole system with the MAC hi-flow cats and it roars at WOT.

well what cam do you have..do you have a motorsport cam or a split duration(more exhaust) cam..if you have a split then it will be louder than a FMS cam..pro chambers as far as i knew did make the car a lil quiter but your compliaing that your car is too quiet..you ungrateful bastard:) wish mine was more quiet

its not that it too quiet actually just not as loud as i expected, i guess anything is gonna be quiet after drag racing my dads 82 with a 351 windsor pushing 450 hp, he has 3 inch all hte way back going through flowmasters (2 chamber) but its not all that bad i still love it

BTW i have the ford motorsport E cam