This is the exhaust tip we've used for years.
 
It's universal and can be cut to fit pretty much any exhaust design.
 
This is the 4" tip.
 
These Tips do require Welding 
 
It's a very clean look and has a great apperence. The benefit is a larger looking tip with a smaller inside diameter to reduce the megaphone affect from a large tip.
 
It's a stainless steel double walled tip that can be cut to suit your needs.
 
It's available in: 3.5" and 4" Outside diameter
 
Dimensions:
 
2.5' flares to 3' inside diameter , 4" outside diameter and  8" long
 
These can be cut down to suit.
 
The inlet can be cut to suit the diameter, it tapers for 2.5" upto 3". The outer shell and inner pipe can be cut for length.
 
We typically use this tip on the AP2 S2000 ( Yellow car )
 
And on the FL5 and FK8 Civic Type R  
 
These require welding.
 
See Video
 
https://www.youtube.com/watch?v=FKhG4uh1dOI
 
 
 
 WARNING: California Proposition 65