Does it bolt up to any B series engine? (head and just before the cat). I am trying to get a custom car sound cat made for me with a 2.5" inlet and 2.25 outlet so that it bolts to me Greddy Evo Catback. What length should the cat be?

 

I did the same thing and when I got under my car, the DC was longer than my stock setup. Your going to need the carsound car at normal length, and then have to cut off part of your b-pipe and reweld the flange so that you can reconnect the b pipe to the new cat. sound confusing, but its not. so, yes the DC JDM header is longer.

 

Do you remeber which model you got and what the length of it was?

 

yes the jdm header is about 1&1/2inces longer than a usdm dc 4-2-1 i had to knotch the cross member on my 92gsr for the header to fit but it should bolt up to all b series motors but there is a lack of cleaance on the cross memeber so i had ot knotch it about 2 inches.