What parts do i get with the stage one upgrade? What makes it work, is it all computer? Is it easy to install yourself? GM wants to charge me 225 to install..

 

Im assuming your talking about the upgrade for the turbo car since your posting in the LNF section, so it contains two(2) 3 bar tmap sensors and the connectors. As far as install some have done it w sucsess. but you still have to take it to the dealer to have the new tune programmed into it.

robk

 

yeah i gotta 09 ss, if i get the upgrade kit then decide to get a CAI or SRI and get it tuned it wont screw with the upgrade will it?

 

do you mean a non GM tune or the GMS1 tune?

 

HP tuner

 

Only mod I'd recommend with gms1 is a cat less dp, supposedly almost anything else skews the stock computer and almost gives no hp increase at all, or even less hp. Besides the cel from being catless it makes your car run better, better mileage and clearly gives your car more hp.

 

get the kit from Crate engine depot;
get the kit with the lug&play pigtails;
do the install yourself;
drive the car to the dealer without getting into boost;
only have to pay for the reflash.

The lower MAP sensor needs a small ridge filed/cut off - and is a MAJOR PITA to get in place...
I found that the upper MAP sensor needed the hole enlarged as it didn't line up with my boss on the intake... rat tail file, and a power drill later it bolted up properly.

Most of the problems are related to the lower MAP sensor/wiring;
either the connection is crap becasue of how short the wires are, and how confined the area is to work in ~ or the MAP isn't installed 100% properly, and it leaks.

The stage Kit comes with:

• 2 x replacement MAP sensors
• 1 x lower MAP retaining screw (replacement, not to use originals)
• 2 x replacement (oversized) MAP sensor O-rings
• 1 x 'GM Performance Parts' decal
• 1 x 'Premium Fuel Required' decal
• 1 x Emisions compliance Stage kit 'certification' decal
• 2 x replacement MAP sensor plugs (or if you choose them from CED; plug&play pigtails)
• 1 x (set of) instruction sheets - on which is a code specific to your kit that he GM tech needs to get your tune

I bought my kit last year, and even got a cool T-shirt from CED... I liked it enough, that I bought two more

 

do yall know if the downpipe cat is part of visual emissions in texas?

 

What dealership? Let me know how they do because I've been trying to find a dealer in the greenville area that has done one, I just don't know if I trust any of them to be the guinea pig.
Good luck!

 

Get two 3 bar maps along with the connectors. When doing this disconnect battery power. Get a hptune.

 

^x2

 

Why get the 3 bar map sensors if he's going HPTune route?

 

Even tho you hear people saying oh I am tuned on the stockers and running 30 lbs that doesn't mean its safe or is correctly seeing boost. It's only going to be able to read what baro and its 2.5 can handle. So if he installed the 3. Bars it'll correctly read up to 28-30 depending on baro pressure.

 

the one im gonna go to is the one on wadehampton "Bradshaw". i'll prolly get it done in another month or 2. give me enough time ta save up a lil more money and get a dyno done before so i can see wut the real diff is

 

Let us know how they do, I'm probably gonna be getting the kit at the beginning of next year. Good luck!

 

Does anyone know if the MPG's after the upgrade?

 

With cat less and gms1, at 60mph (whatever highway speed is in the us) my g
Fuel economy is outta this world. As low as 6.5L per 100km, and high as 7.5 on a windy day.

 

i got mine done at classic chevrolet in grapevine tx back in 2010 $620.00 total installed at their service garage.took 2 hrs while i waited .then i installed an injen cai and charge pipe with a zzp hi-flow cat then i got trifecta tuned for $300.00 with 24 to 25 boost switched on using the cruise control button .needless to say i keep it on at all time and my mpg have increased with each addition.trifecta tune was very easy and took 30 min tops.

 

letdowns come with it lol