I've had my Howell kit on for about 2 years and it has never let me down. It passed smog with ease and I don't have a clue what so called "tuning " they are talking about.I haven't put a bunch of miles on it, but it always and I mean always fires up on the first try. My jeep is not a DD, more of a toy, so it only gets out of the garage when the weather is nice. Go with Howell, then you can spend that $Grand$
you saved on other more exciting Jeep Junk. Just my opinion, I'm sure others may not agree.