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Anyone have 3 inch exhaust going all the way out the back with stock rear end ,gas tank and stock spring location ?? Some say you loose a little hp is it a noticeable difference thanks

Hey guys getting ready to buy a set of Doug's for my smallblock duster and was wondering about the fitment problems if there's any. Also what has to be done as I'm using a 4spd.zbar mods????.and manual steering box .. I'd like to order these by tomorrow if not Monday so any info would be...

As of right now I have flow master 40 series mufflers on my duster and the drone has taken its toll on me. They sound bad *** at full throttle. And at idle but I can't hear my self think Sometimes .These are on my 410 stroker .my 1st question is what's an ALTERNATIVE MUFFLER THAT FLOWS WELL AND...

hey guys finally got my exhaust system done check it out has full length headers with 3 in x pipe out to 40 series flows thinkin of changing my mufflers but theyll do for now . what do you think?? click the link to listen 410 4speed 74 duster Plymouth duster exhaust - YouTube