Exhaust fitment with downpipe/cat

[Jason97GS-T]

Will this GReddy 3in cat-back exhaust fit with the RRE short downpipe and high flow cat?

GReddy exhaust-
GReddy Racing Ti-C Catback Exhaust Mitsubishi Eclipse GST 1995-1999 10137904

RRE downpipe and high flow cat-
Eclipse Exhaust System Upgrades

If not, what downpipe with high flow cat would fit with that exhaust? And PLEASE dont say get one without the cat because I have to keep it in for emission in the state of washington.

 

[DSMSpyder99]

The only problem I can think of is IF the Greddy CBE bottlenecks to attach to the stock cat, than the RRE downpipe will not work because it is a 3". You will need to bring your CBE to an exhaust shop so he can get rid of the bottleneck.

 

[1bad92awd]

It says right on RRE's website that the only systems that bolt right up to their downpipes and cats are the Apexi systems. So what I would check would be to see if the flange on the end of your catback is the same as the Apexi.

 

[RedTurboEclipse]

i may be able to help you a bit.

i have the same rre short downpipe and high flow cat from them..

my catback.. Greddy PE 3" catback.

like many of the "brand name" catbacks it starts off at a neck down because it is meant to bolt to the stock cat. (makes you wonder how they got away charging $500+ for so long.. yay ebay exhausts, but thats another story already told by other threads here )

If same goes for the catback you are getting, it will NOT work. it will line up but because flange is so small the holes may not line up and if they do you will most likely have a leak, and why go through all that money and have a crappy neck down there. So what was done with mine was it was cut and 3" was put on to bolt up with it.