Pontiac G5

[V0nzippy]

I got a 2.2l ecotec engine and iam lookin for some ways to boosts its power i got a GM Performance Cold air Intake system
what other mostly inexpensive things can i do too boosts its power

[maxximuss1]

im not sure what you consider expensive but,
performance plugs, under $100 (wont neccisarily add much power)
exhaust, 3-900 (the biger the pipe the more flow)
injectors are good to richen up the mixture(however this requires computer work, some times), no doubt your runnin a bit leaner now with the intake but make sure u put on ones that are right for the setup u dont wana run to rich either.
you can add about 20% of ur power with that maybe more i hear the ecotec responds well to tuning. make sure what ever you do to talk to a machanic to tell you what oil u should be using with your mods. just so you know youve voided the warinty by puting on an intake or any of the things iv mentioned. its a prity new car and i cant find any thing on parts for it so good luck on findin stuff. surprised you found an intake pipe for it

[jeremy96gase]

First off welcome to both of you to the forum!


The G5 engine, drive train, suspension, and almost everything else on the car is identical to the Chevrolet Cobalt Coupe.
Any performance part that fits the cobalt will also fit the G5 :)

An intake would be a good start, Exhaust after that. Then start in on programming the computer.

You don't need new injectors unless you plan on adding Turbo or Supercharger.

[SL04P0PR]

Welcome to the site. Will you share some more info on your car, like transmission and paint color, for those of us who are curious?

Also, a little advice for your car. Don't change your spark plugs, they're new like the rest of the car. You'll get little to NO power benefit from a plug change at this stage. Don't get new injectors either, or bigger injectors for that matter. the stock injectors can support a lot more power than you're currently making, and the ECU compensates fuel delivery, to an extent, for additional airflow modifications you will be doing. The CAI is a good start for this. It helps to ask yourself 'how can I make my engine cycle more air?' well, the air has to pass through a filter, an intake pipe, throttle body, intake manifold, intake ports/valves in cylinder head, combustion chamber, exhaust ports/valves, exhaust manifold or header, and all the other exhaust components. Consequently, all of these can be modified to allow more air to pass through. Now you should have a better idea of which bottlenecks you want to eliminate. I would recommend replacing the exhaust system as a next step(s). Even if it takes a while to save that $$, it will be worth it. You will get the most bang for your buck improving the exhaust flow.

holler back if you need more good advice.

[csm huber]

Originally Posted by V0nzippy

I got a 2.2l ecotec engine and iam lookin for some ways to boosts its power i got a GM Performance Cold air Intake system
what other mostly inexpensive things can i do too boosts its power

Methyl Alcohol and Water injection is a good way to get a reasonable HP increase without making serious and costly modifications to your engine. Kits are available that will you do the install with basic common tools.

[knicker26]

What can I do to boost performance, at the least cost, without voiding the powertrain warranty. I would like to do the work myself if possible. GM dealer labor rates are very high.

[Chuck3300]

something simple to do to keep your car running good with the power it is designed to have is: to use top tier fuel (its in your owners manual.) Besides that full synthetic oil is good for aroune 3-5hp and better for the engine. Without tearing into too much and voiding the warranty there isn't a whole lot to do.

[nickdval2]

thats true... most the things that u need to do most likely will effect ur warranty.... most of these little things only add a few hp(3-9)... i know that money is tight... but don't expect to run a mustang down on this lil things... the exhaust is a good thing to do.. just remember that compression and volume efficency are the thing that add ur power...other words... more in... tighter squezz...more out... more power... after the exhaust... try to get in with someone at a dealership... they can tune ur car to a performance level... but if u need parts... i know a few websites... kinda pricey... but woth it

[RavynX]

You won't see any increase in power from the following mods until you start to heavily mod the engine:
- Spark plugs & Wires
- Fuel Injectors, Fuel Rail, or Fuel Pressure Regulator (same as what Jeremy said)
- Cold air intake (mainly for sound, you might get 1-2 HP at the wheels)
- Header (won't see any gains unless you couple it with a full exhaust)
- Exhaust piping & muffler (mainly for sound, same gain as intake)
- Pulleys
- Aftermarket ECUs

You really have to pair the header and exhaust together to see a slightly noticeable difference because the system is only as good as the weakest link. So for example if you got a header and matched it with the stock exhaust, your system would flow well until it hits the exhaust which will then constrict the flow.

Same with an intake, you might get a slightly better flow to the intake manifold but your engine can only take in so much air before you're forced to do heavy engine work (port & polish, etc to allow more airflow) or force the air in via Turbo or Supercharger.

I know it sucks, but that's really how it goes. You can spend a couple hundred bucks on bolt ons and like the new sound or you save up a lot of money and truly mod the engine for good power gains. It all depends on your budget and how much you like tinkering with cars. =)

Just my $0.02 & Welcome to the boards.

[09pontiacG5]

I was wondering if a 08 cobalt headlights will fit into a 09 Pontiac g5? i want to get halo or projection headlights and i can only find them for Cobalts.