hey, im doing my greddy install in 2 weeks on my 96 civic ex coupe, and today am going to go get a hi flow cat. the problem i have is that the guy @ the muffler shop said that any hi-flow cat will become clogged after a while due to the blue box making the fuel rich. is this true? he was going to give me one of his normal aftermarket hi flow cats. its not a import performance shop, so i dont think the cat is a brand name you guys have heard of. whats the deal? will the blue box even make a hi flow cat clogged after a while? what should i do? thanks p.s. vfac, etc etc etc , is out of my price range for about 6 months. so im forced to run blue box untill then.