http://www.ottperformance.com/store/...-Kit-4p258.htm

Is this kit basically the same thing as a GM stage 2 kit? After doing some searching it looks like the OTT stg 1 kit used to come with 60's, and now the old stg 1 kit is the OTT stg 2 kit. What I want to know is if the power gain on the OTT stg 1 kit would be similar to the gm stage 2 kit? What's confusing me is it says on the site to expect 25 extra hp to the wheels, and the GM stage 2 kit says that it's a 40 hp upgrade kit. Help Please!

 

The GM Stage 2 kits gains are misleading because the SS/SC is underrated from the factory. Most (on avg) produce 215whp bone stock. So in reality you gain about 25whp with the GM Stage 2 kit as well. Everyones car is different, and will produce different levels of power due to build variation, location, climate, modiftications, etc. The OTTP Stage 1 kit is very similar to GM Stage 2's, but I'm sure the tune is a little leaner. GM Stage 2 is know to be on the rich (safe) side.

 

OTTP stage 1 is = to GM stage 2

But if i were you just get OTTP stage 2 now

 

I thought about going with the ottp stage 2, but this car is my DD, and I don't wanna jack with the screwed up idle of the 60's.

 

i have ottp stage 2 with their canned tune, my idles is great same as GM stage 2 no joke...

 

I've read about so many other people having problems with them though....rough idle, misfires, etc.....due to the 60's running below minimum spec at idle.....anybody else with 60's want to chime in?

 

I have 60's on my car with the zzp tune. My iddle is a bit eratic but i thought it was the gunk in my tb. not the 60"s

 

Does anyone have the new ottp stage 1 kit installed? My other concern is if it is a safe and reliable tune? The cost difference vs gm stage 2 is significant. It's around 400 for the ottp with puller rental, and around 800 for the gm stage 2 with install, but I would be more than happy to pay the extra money if the ottp tune pushes the limits. All help and input is appreciated!

 

Do u wanna keep ur warranty ? or do u have a warranty still ? of so go with GMS2 If not go with OTTP S1 Or S2 Trust Me U'll Love IT !!!!

 

If you want the best tune, you need to get a custom one.

 

Pulled the trigger on the GMS2 because of warranty. Now I just need to save up for the GMPP exhaust.

 

I have the stg II. Used to have the old stage I from OTTP. Never had a rough idle. Never misfired with their tune. GM's tune is ****. They set the afr to around 10:1 which is too rich imo. But if you have someone near you that tunes, you could lean it out a little and bump the timing. I've seen some cars pull hard with a tweak of that tune.

 

No they did not .... The GM Stage 2 tune is rich, but not that rich. When I had the GM Stage 2 tune my commanded a/f ratio was 10.8.