joffer00

Anyone have any info that may help I appreciate it. So on my 2000 ss m6 I'm looking to get my 1 7/8 polished lt's installed but I'm wondering has anyone done these without cats and if so did you just get them tuned out or use o2 sims or what's the best way to do it. I can get Sims for 45 each and I'm just wondering do you use it in all o2 locations and how many are there on the ls1 f body's and all that jazz