Hey all. I have had my car down for 2 weeks as my Cat is starting to lose it. So I ordered one of those bolt in, straight through Cats that many places are selling. It lists as built for a 90-99 Nissan Sentra and is also listed as a 2.25" unit. The local shop calls the business selling these and while I'm standing right there, he asks what internal diameter it is and is it also for an SE-R. Reply is simply 2.25" and yes to the SE-R... I think you blokes know where this is going... So the business takes about a week before shipping it so it arrives today. I get to the shop, look at the outside (nice) and then look in..... WHAAAAAT????? :confused: ..... Oh yes, it's 2.25" at start and exit, but can you believe, it's 1.25" in the middle!!!!!! My factory exhaust is not even that small. I will bet my life that the factory Cat can
flow about 200% more exhaust then this thing. I was told 2.25" straight through and I get this shyte. I'm hoppin mad right now. I told my friends at the shop that I refuse to own this junk and that they need to send it back..... Ok, I'm done.... just don't buy one of these straight through Cats. It's a waste of time & money. :mad:

Cossie

Get a universal Catco cat from Summit Racing. They range in price from $60 - $100 depending on the size. I have one and zero problems.

Steve

or u can just shitcan the whole thing and get a "testpipe" :D

thanks for the ideas blokes. I tried the test pipe years ago and the BRAAAAAPPPPP noise was so loud I took a sledgehammer to it when I got it out. :D felt great!!! :D

Cossie

yea, go the catco route. get the 2.5 inlet/outlet universal one that is 14 inchs long, then go to a shot and have them cut .75" off of each end and weld flanges on. its a LOT cheaper then a random tech one. i got one, and i just welded and did the stuff myself..