how much in length is the coupe to the four door if any? will a catback for a 3 door work on a four door? thanks

 

No it won't fit
The piping from the 3 door is shorter believe it or not, even though both cars appear to be the same length.
A friend of mine with a four door teg bought a Tanabe exhaust for his car and when we got to the shop to put it on we later found out it would not fit because it was meant for a 2 door.
He ended up swapping the exhaust for a Greddy SP form the place he bought it.
The piping for the four door is a bit longer in the mid section.
hope this helps

 

I had this discussion with Chris a while back, and he said that a 2dr exhaust will fit a 4dr with 3 or 4" of additional piping in the b-pipe, I think. HTH

 

thanks guys