I have a 04 ss s/c and I just replaced all kinds of stuff. I got TOG headers, random tec high flow, corsa cat bak, msd coil packs, ec3 plugs, k n cai. My question is....Should I be sending my mods to zz performance for a modded pcm? And, Would anyone recommend I do anything else here? I want to get the ported and polished super charger from PFYC.com, and a throttle body mod from an old NStar. Anyone have some insight? Thanks guys! I love this site!!!

 

i think you should get headlight blackouts... i have seen a 50-100hp increase in my monte

 

Stay away from ZZPerformance with your PCM. They will sell you an upgraded PCM, but of the 2 Monte's they've worked on in house, mine being one, they HATE them, and I don't think they will work on one again. Don't know what the difference is between a Monte and a GP, but trust me, there is!
I'm not impressed with mine. If that's all that's out there, so be it, but I'd try Intense or Miltzy first.
I want a tuner from HPTuners, but haven't done it yet.
Also, get rid of the MSD coil packs. They SUCK! Trust me on this. Dyno pulls will show you why. They are erratic. Factory coils are THE best out there.

 

get your self a head ache saver. go find your self a Digital Horse power tunner. and a good lap top.
learn to use it. and be happy.

 

I have the black outs...actually lost horsepower at night!!! Cause I couldnt see LMao!!! Thanks for the reply!

 

I'm kind of suprised at the msd coils being junk. I heard nothing but good things about them until now....anyone esle have issues wiith them?

 

Ditch the coil packs, and the plugs. Go with stock coils and autolite 104 copper plugs.

I agree w/ cookie cutter pcm's not being that great. I would try and see if you can find someone local that is good at tuning to help you out for the same price.

Some 1.9:1 rockers would help a lot, used modded stockers go for just over $200. Looking into a new tune is a good idea; as is a ported blower (I would go zzp on that though). Pretty soon you're gonna need to look into dropping pulley size- with these mods, I'd probably start with a 3.4", but get a modular system if you plan to keep modding. The rockers and pulley drop will add a significant amount of power to your setup for little money.

Oddly enough, I've heard similar stuff on mymonte about the zzp pcm's. Although, I still don't think I'd go Intense- especially after remembering how they were popping pistons when the L32s first came out.

They're junk because they have a higher failure rate than stock and produce no extra power. Even the 8 second 3800 GP runs stock coils, and there are people with otherengines that convert to our stock coils for more power. There just is no need for them

 

How about those pulstar plus plugs? I saw them on horsepower TV where they ran a dyno on a corvette, and i saw another video on maybe metacafe or something like that where they did a dyno on a different car. It showed increased horsepower and MPG. I dont know if any of you have tried them, but thats what i plan on getting for my monte.

 

I have too much exhaust sound from my exhaust....Do you gus think it's from te big *** resonator that came with the corsa syste, or maybe the big down pipe and cat, or the headers...??? Should I take out the resonator >? any suggestions? I liked the quietness of the stock exaust, but I wanted the performance....Anyone?

 

No, they're stupid expensive. If you're NA, just stick with platinums like stock (unless you're really hardcore modded)- if you're boosted, stick with coppers of the proper heat range. The coppers are like $1/plug.

Your stock catback shouldn't have been that restrictive unless you're prettydecently modded. People have run 12s on stock GP catbacks. If you wanted it quiet, I would've just stuck with the stock catback- take the 2 hp hit (or whatever minor amount it is) and put all that money into more engine mods.