Hoping maybe somebody here has experienced this.

When I got my 94 2dr LS, the previous owner had installed a header with catback exhaust. The header is evidently a GSR header as it had no prevision for a 02 sensor. (Ive since welded a 02 bung so I could hook my sensor up) It has some ebay catback exhaust that sounds terrible and doesn't fit well.

I welded up a magnaflow muffler and it sounded terrible and now looks terrible as well.

I now want to install a World Sport Exhaust on the car but am not sure which system to buy.
From my understanding my catback will need to be a bit longer than the standard LS catback because my GSR header. I think the cats on GSR's are longer because they have the 02 bung built in dont they?

Should I buy the GSR exhaust or maybe the exhaust for a 4-door. If I have to modify the exhaust then thats what I have to do but Id rather not.

Any thoughts?

 

funny im just now in a similar situation with a ls that has a gsr motor but ls stock exhaust manifold. The aftermarket system on the car seems to be for a gsr and the cat was a modded shorter or aftermarket shorter system to fit so im in the reverse of your situation. Id have to say you could just go with the gsr system and have piping adjusted if necessary. In my situation i have to get a ls cat to go back to stock or have a shop adjust the piping to work with the shorter cat.

 

If you have the GSR cat get the GSR exhaust.
If you have the LS cat you are going to need to fab some **** up.

 

I have the LS cat because it has no prevision for a 02 sensor. Id like to get a system that was a little longer so I could cut it down versus trying to have to add material.