Mart00SS

iTrader: (19)

I'm looking to get some LT's but don't want to deal with the check engine light when you don't have cats. What are some options besides programing or removing the check engine light. Are there some small or high flow cats you can run?

RareBreed0295

iTrader: (35)

Just get it tuned out. It only cost me $50. Its worth it.

Mart00SS

iTrader: (19)

You have to send the cpu out or someone just used a programmer

massls1guy

iTrader: (9)

My cats are tuned out but I still have them. A lot of people say they make LT's sound better, less raspy. There are lots of options for LT's with a cat'd Y that fit right up to your cat back. Fyi I have the stainless Dyntechs LT's.

RedRallyeZ

iTrader: (20)

most shops and SOME dealers can do it, i nkow there is someone in FL that can do it for you. post up in the regional forums and see who responds

but to answer your question, i know magnaflow makes some high flows that Blur LS1 is or was using, so check some sponsors for those and see what pops up

RareBreed0295

iTrader: (35)

You can go to any dyno shop and they should be able to do it fairly easily. It took them all of 5 minutes to tune my 02s out.

MarylandSpeed

iTrader: (11)

You will get a CEL even with aftermarket cats. Most aftermarket cats are high flow (much better than your factory cats), which means even with them installed, your rear O2's will see higher temps, and thow a CEL light. Best way to fix is get a tune and get the rear O2's turned off. You really need a tune after LT's anyway.

davered00ss

iTrader: (4)

Even with Cats you will get an SES light. Get a tune. As for the rear O2's if you don't delete them you can get O2 sims.