Just get one flowtech cat from advanceautoparts.com for 152.00. Is it a good cat for my 91 integra? If not, any recommand? I need one that directive fit. Thanks.

 

Never heard of flowtech...the two names you see pop up the most are carsound and random technology.

I have heard both good and bad things about both. Carsound gets my vote though...

Shingo

 

Got it installed today. car runs smoother than before and no loud sound either. It also helps me pass emission test Now, I feel need a good air filter .. how about K&N?

 

Fuk that, get a test pipe instead. it maybe a problem if you live in a state with emmisions though. i'm sure glad i can do whatever the fuk i want to my car.
florida=no emm. testing

 

A nice fresh cat doesn't restrict exhaust flow. Test pipes make your car smell horrible with all that raw unfiltered exhaust coming out the back. You just have to make sure that you replace your cat once it absorbs enough smog to get clogged up.