i was looking at the stage one kit for the supercharger thats suppose to bring it from 205hp to 236, as far as i can tell its just injectors?

http://www.cobaltperformanceparts.co...roducts_id=287

 

Yea, and a tune.

 

It also includes a new calibration that increases the redline of the engine and higher maximum boost, since now the upgraded injectors can support higher airflow.

 

Just do a stage 2.

Here: http://www.gmpartsdirect.com/results...umber=17803229

 

ahh, well a friend of mine can tune my car (already has once to increase the redline and such) so i could just get new injecters for 200 or so and save some money right?

 

yes sir but he will have to retune it

 

^ If your going to go that route, then buy a hub and smaller pully too, like a 2.9 or 3.0in

Edit: Intense has a modular pully system for $100, that comes with whatever size pully you want. Then you can get extra pullies for $60. There are other places too.

 

Correcto.

Rescale the "Injector Flow Rate" table for the new injectors, remove some of the supercharger's torque management and raise the redline and you have yourself a near-GM Staged tune.

 

cool, cause i wanted to upgrade but i didnt want to spend the money on a full stage one or two at once, good to know that i can do it bit by bit.

 

If you aren't worried about warranty then don't buy the GM stage kits. You can get a similar setup for a few hundred less. It is a good kit, but the reason why most people have them is because if your dealership installs it they won't have a reason to deny you service. Although some still do.

 

ahh, well i have no skill at all with this kind of things but even i could change injectors, so i dont see any point in paying GM to do it, and enless they can prove that the mod is what caused the problem they cant void your warrenty just for upgrading parts. at least thats what the sticky on this site about warrentys says

 

you can just buy my used ones if you want

105 shipped , all you need is the harness

 

i will keep that in mind, what kind of injecters and about how many miles on them?

 

You pay GM to do it because they have to install the tune for you, and don't forget about having to press off the stock pulley and press on the hub.

So, if you're already going to go there to get the tune anyways, then why would you try to install it yourself? If you have a good dealership it will only be a little more expensive for them to do the whole job. What there's no point in is trying to save $150.00 by installing yourself and then having to fight later on to protect your investment in the car, because they will try to blame you.

You'd be suprised how many people "Could change the injectors" and really screw up doing it. I'm not trying to be rude at all, just giving my opinion based off of facts that I've seen.

Edit: I'm talking about if you get the Stage II kit. With the stage I kit I wouldn't take it to the dealer; especially if you have a friend that can actually tune. You are right about the fact they have to prove the aftermarket part caused the problem but answer this: If you had a problem with your engine and you have a 2.8" aftermarket pulley on, would you take it to the dealership as is, or would you swap your stock pulley back in?

 

yeah i just mean a stage one at the moment. a friend of mine can tune it so i dont really need the dealership for anything. as far as the pulley goes he can and has done that as well but from what i understand getting the pulley off is a pain ass so i wouldnt ask him to do it enless i slipped him some cash.

 

You can rent a pully puller from zzp to remove the stock pully.

 

True. I keep forgetting about that.

 

I am still trying to figure out is up with that picture you have, about medium rare steak

 

what, dont you like steak? mmmmm steak!

 

If you already have someone to tune it, might as well go with the 60# injectors and the 2.8 pulley

 

I love steak, I just dont understand the three dancing dudes