hello guys

just need some info/advice on a new decat if you could

ive just brought a middle and back box for my 1994 jdm wrx and noticed that the old decat has been weilded to the exhaust
so im going to get a new one, the problem is theres so many different ones ,oval holes,2 holes,one hole and a blank etc

im not sure which one i should get and i dont want to get the wrong one
any help would be much appreciated

btw the new exhaust is 3 inch straight threw (japspeed)

thanks pete

 

BTTT