My new exhaust consists of a mild steel 3.5in downpipe (12lbs). Goes from turbo to the bottom of the firewall. From there is a single 3.5in system in aluminum to a 3.5in Vibrant aluminum straight thru muffler, dumped at the axle. This section weighs 10lbs. This setup has a real nice sound to it, agressive but not too loud. All connections are v-band.
Previous exhaust utilized the same dp. Back section was mild steel, 3.5in split to dual 3in magnaflows dumped at the axle. Real smooth deep sound. All connections are v-band. Only swapped to the single aluminum setup to drop weight.
My earliest turbo exhaust setup was a 3.5in dp to a single 3.5in Dynomax race bullet. This setup was extremely loud and sounded horrible. Sounded like an old chevy van with a gigantic exhaust leak and a ignition miss.
80 coupe, N/A 347, tko500 1.34, 6.30 @ 109.01, 9.87 @ 137.06
16 GT, daily driver on pump 93, Procharger 1.42, 6.31 @ 109.59, 9.80 @ 141.57