Originally Posted by quicksilverado

Lingenfelter makes one that is identical to Harlans old 2-step. I think they bought his setup and put their name on it. Mine was one made by Harlan. There are only a few wires to hook up. Ground, brake and 12 volt source. Then you unplug the coil pack harness on each bank and plug the supplied plugs in between. Very simply to use also.

Originally Posted by ZO6Ted

Dont you have to gut your cats to use a 2 step? Thats the only reason I didnt. I hear it works great though.

Originally Posted by MISTERIO

anybody has more info on this,, how about a trans brake

Originally Posted by Wilde Racing

I bought one a while back, I never hooked it up because I sold the turbo kit a few days later, but it has a ton of features and looked nice. I'd buy another.

slowec, You can tune a better 60' foot time, by playing with timing and fuel. I got my 6 liter/GT67/STS/4l80e stock converter to stall over 3,000.....

Originally Posted by 1slow01Z71

You most certainly cannot have cats while using a 2step, the unburnt fuel going into the exhaust will melt the cats. If you look on the website it specifically says not to have cats.

Also I believe synergy makes a 2step.