Does the factory dual exaust still only have one muffler, or does it have 2.

 

One muffler.

Each manifold has a pipe going to a cat, both cats located on passenger side. Then, a y-pipe from cats to a single intermediate pipe over the axle to a single muffler.

 

ok I get it now, Thats what I thought.

Thanks, JAWZ

 

When the 82 F body was first introduced in Oct. 1981 it had two mufflers that ran in series tranversely mounted behind the rear axle. However it was split after the converter & had two skinny 1.75" pipes. All subsequent third gens have the single muffs with single or dual outlets.

 

I keep forgetting about that.

One other thing: Most don't have those dual cats. However, most do have two exhaust pipes as seen from the rear, but both come out of one muffler.

 

I have the 2 tips out of one muffler, I just couldnt remeber if I've ever seen two muffler's before. Thanks for the clarification.

 

Here is parts illustration from GMPP to clarify"

 

There's a red X

But I've seen the pats in the summit catolage, so i know how it's set up.

 

just from looking at that picture you can really get an idea of how crappy the stock exhaust flow really is.