Exhaust size question

[dsm144]

I'm looking to get a new turbo back exhaust. I'm thinking about going with a full 3 inch megan racing exhaust. My question is will any of the pieces (cat back, down pipe, o2 housing) fit on the stock exhaust/cat? And also I noticed that I can get the 3 in cat back and down pipe but the inlet on the downpipe is only 2.5 inches and the o2 housing is piping is 2.5 inches inches. Is this normal and would this be a good exhaust for the car? I have a 95 gst.

 

[dsm144]

Im trying to save up enough money to get a full exhaust system at one time. Thats the main reason why price is a big factor. I want performance for a reasonable price and the megan system seems to be the best one on the market right now, but Ive also heard the good and bad about ebay exhausts as well. It seems like no one has any fitment issues but as far as performance goes it seems like megan would be better. Also with the 3in am I going to run into problems with the rear sway bar? I dont want to sacrifice any handling to get the exhaust so any suggestions on swaybars would be very helpful!

 

[crash89]

O2 housing was OEM? or aftermarket?

Now that I think about it, it was an aftermarket o2 for my ext wastegate..

 

[FIBA M - EC17PSE]

Im trying to save up enough money to get a full exhaust system at one time. Thats the main reason why price is a big factor. I want performance for a reasonable price and the megan system seems to be the best one on the market right now, but Ive also heard the good and bad about ebay exhausts as well. It seems like no one has any fitment issues but as far as performance goes it seems like megan would be better. Also with the 3in am I going to run into problems with the rear sway bar? I dont want to sacrifice any handling to get the exhaust so any suggestions on swaybars would be very helpful!

There's a brand on ebay I THINK its called rsr or srs??? They are pretty good and I've heard good things about those and for the price it seems like a good deal! As to your swaybar question you should be ok regardless if you have the thicker set from say tanabe or any other brand! The only worry would be if you got under braceing that's a little bit of a worry!