Drew

iTrader: (58)

Since I had to dig into the archive to find some older and apparently now discontinued Walker/Dynomax part numbers, I figured I'd better post them to the forum for posterity. In the past I've just saved these diagrams, but they tend to get lost, so maybe if I post them here I will be able to find them in the future.

Some of the parts are still available, but I'd assume they're in the process of being closed out. Neither of the HO systems is currently available from Summit, but I was able to find the PDF sheets showing the part numbers.

17493 is the Super Turbo exhaust system for 83-92 V6 and non-HO V8s.
17494 is the Super Turbo exhaust system for 84-85 HO V8s with the 4-bolt cat flange.
17495 is the Super Turbo exhaust system for 86-91 HO Single cat cars (2.75" intermediate pipe that necks down to 2.5" at the muffler, and dual 2.5" pipes).
17484 is the Super Turbo exhaust system for 88-91 HO Dual cat cars, identical to the above part number, except the intermediate pipe terminates at the flare or ball-flange for the dual cat cars.

BizJetTech

iTrader: (3)

Thanks for sharing !!

Drew

iTrader: (58)

I'd tried to find the Ultra Flow diagrams too, but I couldn't find the listings in the old catalogs I have handy. Pretty sure the only difference was the mufflers.

On a similar note, here's a pile of Flowmaster exhaust systems that are largely discontinued. Again some of the pipes are long discontinued or were seldom available individually, but someone might find them interesting.

17150 89-92 HO Dual Cat - Force II - Single Left Pipe (Plain)
17151 86-91 HO Single Cat - Force II - Single Left Pipe (Plain)
17152 86-91 Low Output Single Cat - Force II - Single Left Pipe (Plain)
17233 86-91 HO Single Cat - American Thunder - Dual Pipes (Stainless tips)
17234 86-91 Low Output Single Cat - American Thunder - Dual Pipes (Stainless tips)

Pretty sure I'm missing one in there, because there should be a dual cat - dual stainless tip version of the American Thunder cat-back. The only difference would be the Y behind the cats instead of a single flanged pipe for the single cat.

chazman

iTrader: (4)

Wish a Walker 17494 was available when the cat on my '85 exploded a peppered the IP with shrapnel.

Drew

iTrader: (58)

No doubt. It's too bad Walker/Dynomax kind of missed the boat on thirdgen exhausts. Instead of having four different cat-backs, they could have had one cat-back, and four adapters to connect that cat-back to the cats on every thirdgen from 82-92. With a few more adapters, the same cat-back could fit everything from 82-02. But they were kinda married to the idea of different intermediate pipes for everything, A 1-piece intermediate pipe that made install a pain, and a 2.75" intermediate pipe that necked down to 2.5" at the muffler like the stock setup. Had they made it a 3" intermediate pipe, with a split over the axle (Like everyone else), they would have sold a lot better. Hard to figure why the manufacturers never bother to look at the forum and see why people aren't using their product and making slight changes to make their parts more viable. Oh well....