Being that my plan is to get a GMS1 kit for my car, is it not worth it to add on a couple bolt-ons? My plan was to get a couple mods, but nothing too extensive since the car is my daily driver. I planned on getting an intake for sure, (likely a K&N) and was considering a down pipe of some sort.

Now, I read that if you are using a canned tune like GMS1 that these mods won't produce much power gain because they are not tuned. So will these two bolt-ons be worth the purchase with GMS1 or am I better off saving my money? I can assume the intake will still be worth it because I've seen a lot of people run a K&N with GMS1 and see definite power gain and increased fuel efficiency, but I'm more in question about the DP.

Anybody able to clarify for me?

 

downpipe will help alot

 

a lot of ppl are just running the K&N drop in not the actual SRI intake, i mean the downpipe you may notice some gains with gms1 but you are not going to be able to get the full power out of the car if you don't run an aftermarket tune

if you want to run a tune and bolt ons i would just get an aftermarket tune

 

But u need the gms1 or you will blow your map and temp sensors if u go over 23 psi

 

well you shouldn't try to go over 23 in the first place but you can be tuned over 23 without gms1 with both trifecta and hp tuners now

in addition to the fact that you can just buy the 3 bar map sensors & pigtails online without paying for the entire kit , but you don't need them to run 23psi

 

get the DP and a K&N drop in filter those will not upset the gmpp kit and it will correct a small amount for them. if you tune them with hp tuners via a well known tuner on the site i garuntee you will 1) be suprized with the power 2) get great gasmileage still 3) it will still last a long ass time before problems

 

I would go with an after market tune, but I'm concerned about the warranty, since I bought the extended warranty from GM. What kind of problems could I be looking at if I went with the SRI over the Drop in? Because the fuel economy increase with the increase in power + (from what I've heard) a good sound make the SRI sound really appealing.

 

if anything happens to the car, just revert it back to the stock tune they will never know

 

People really need to stop saying this, it is WAY off from the truth.. The reason people blow the Map sensors is from more blowby then normal, NOTHING to do with boost amount. I ran 30psi thru the OEM sensors and still have the same ones on my car today. Its not the boost...

As for the OP, if you don't plan on getting a real tune do not mess with the intake is my .02. DP, CP's are ok and will make gains you can notice.

 

Would I need to pay someone to do the tune again though?

 

If you buy a tune 200$ is usually the price if you need stock you talk to that person and they just flash back. Ask for a externally saved stock file so you can keep track of your own factory file. It's no big deal

 

yeah usually they will save your stock tune. and can revert it back to it for free.

 

Why is this though?

 

Search, it's been discussed to death. Intake is not advisable without a real tune.

 

the intake like sri and cai can change the values required by the maf sensor to adjust fuel correctly. not only that sri is in the hood and may require tuning due to air desity based on engine bay temps.

bottom line a intake kit requires maf and base fuel table adjustments it is not recommended by itself. the drop in filter is your best bet and you are still completely factory. people make over 320 whp with the drop in filters and a tune, save your money.

 

Hm. Really torn between GMS1 and a trifecta right now...

I know I can make much more power with trifecta + a couple mods... But I'm concerned for the warranty. I know that I can revert the tune, but that will be a pain in the ass I think going back and forth.

 

Its very simple. You select one file, then flash. Or the other, then flash.

OR

You can buy a spare VCM and load the tune on that, then just switch computers when going to the dealer. Either is very simple.

 

Yeah, but its gonna run me like 80~ dollars each time I flash right? Would you happen to know how much a spare VCM would cost and how difficult it is to switch them?

 

Why would it cost you each time? You already have the files and the cable at that point, its just a matter of flashing them to the car.

Search for a used VCM.. To switch them, unplug one, remove, plug in other lol.. This is not rocket science here..

 

not true at all.

 

no, after the first tune it will be FREE to tune it back to stock. It will then be FREE to retune it back to the aftermarket tune.

 

Ohh, hm. I'm interested then...

How much would it run me to be able to switch back and forth? I've been looking at the website, but still don't 100% understand the whole deal.

EDIT: I see that it comes with "New LNF tune includes select-a-tune, hide-a-tune and Infiniboost "
What do these mean exactly?