Are these GNX mufflers?

[MG8T7GN]

Found these yesterday cleaning out the garage. Are they from a GNX? One muffler has GM 25513005 AH 8 1 254 5 and the other has GM 25513006 AH 3 1 311 6 embossed on it. Also found a Y pipe that fits the mufflers. Thanks.

 

[MG8T7GN]

Some more pictures.

 

[TurboRegal84]

Mark,

Yes....Looks like a GNX Exhaust system to me.

 

[MG8T7GN]

Thanks, Herb. I'll clean them and put them away for a few more years.

Mark

 

[1 QWIK 6]

could be hurst olds.....

 

[MG8T7GN]

Isn't the cat flange TR specific? The Hurst Olds had a different cat, didn't it? Herb, are the numbers on my mufflers the same as the numbers on your mufflers? If I decide to sell them, I want to make sure they are indeed GNX mufflers, so as not to cause any problems with the buyer. Maybe someone could look at the numbers that are on their GNX.

Mark

 

[TurboRegal84]

Mark,

It appears your Y pipe is different than the one I have. Part numbers are the same on the spare mufflers that I have. The system I pictured above was removed from a GNX.