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Old 02-10-2020, 08:13 PM
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68ragtop 68ragtop is offline
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Join Date: Jan 2002
Location: Green Bay, Wisconsin
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My 1980 Turbo TA also has the dual resonators / mufflers, just like the 78 & 79 W72's have.
I kinda like the way they sound even in factory form. When I got my 79 W72 it had a "test tube" replacing the cat, but all factory otherwise & it had a bit of a rumble to it. I re-installed the factory Cat & that quieted it down a lot, but I still like the sound of it for a factory setup.
makes a little bit of noise over your typical oem exhaust system.

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68 GTO 4-spd Convertible
78 S/E Trans am L78, WS6 Auto
78 S/E Trans am W72, WS6 Auto
79 10th aniv W72 Trans am
80 Indy pace car Trans am
89 Trans am GTA