I just reworked the exhaust on my '86 Comanche. I wanted to go hi-flow for the slight performance/economy gains, but since it's a DD, I definitely didn't want a "rice" sound, or something that would drown me out of the cab.
I followed a friends recomendation and went with a 2.5" system,
Magnaflow cat and a
Gibson Superflow (the oval style, not the round cherry bomb style). Then I had a local shop fab up the rest of the pipe and install it all for about $100
I really like the Gibson - it's about $20-$30 more than the Flowmaster, but worth it IMO. It has a deeper, more subdued tone and doesn't get that loud until I'm above 3500rpms or so, so it sounds fine driving around town. It's not nearly as raspy as some of the Flowmasters I've heard. Definitely still sounds like a 4 banger, but IMO it's a much closer sound to a 4.0 than many of the other set-ups I've seen.
I'd post a clip, but the mic on my cheapo camera really doesn't do it justice.