Alright before you go and tell me to SEARCH i have done it many times and no one yet can answer my guestion or problem. Heres my situation I bought a Y pipe from Warpspeed and it didnt fit perfectly up into my car, so I carved out one of the holes and we got it to fit. Now I see with the gaskets that they give you (metal circle ones) its causes leaks there. So I think I need to put new gaskets in there. Also at the end of the Y pipe where it connects to the cat its leaking there too because I have an original cat. So I want to replace it with a catco hi flow cat. The new Cat should fit better and it shouldnt leak. But now with the rest of my exhaust is what I have a problem with. Laws in Maine just passed making it almost impossible to pass a car with an aftermarket exhaust. So that puts the greddy catback of the list. Do you guys think I should put the Warpspeed b pipe in either 2.5 or 2.25 diameter size. I just need a solution thats going to fit and not going to leak. Here's my logic the Warpspeed y pipe is 2.5 in diameter, the Catco cat is also 2.5 diameter so do I need a b pipe with 2.5 diameter or can I go 2.25 and get a magnaflow muffler. I need some help on this one guys cause it stumps me. If i get 2.5 for a b pipe i cant get a magnaflow muffler. I just need some help on advice please and asap.
Anyhelp is very much appreciated....

 

what laws were just passed? are they new emissions laws? how can you automatically put Greddy off the list but now any other catback?

 

we cant have anything that doesnt look stock or louder than stock on our cars....but if i get a magnaflow it will look close to stock and only doesnt sound like stock until i start to get in the higher rpm band

 

The cattman cat-back would be pretty good for you also. It looks pretty close to stock. I have pics on my homepage if you want to see it.