wolfcrouser

what HP gains will i get with just a CAI & Exhaust?

sick06cobalt

your only looking at about maybe 25... maybe... i mean the injen adds about 15 or so.. and depeneding if you go full exhuast or just a cat back youll see different results

1. posted in the LSJ proformance section
2. he has a super charged embelm under his name...

wolfcrouser

Thats what i thought. i didnt want to say anything though i was thinking around 15-25 am I right?

sick06cobalt

yea probably around 25...

XM15

When you say 25 horsepower, I'm assuming you guys mean if he gets a full exhaust and not just a cat-back.

wolfcrouser

thanks for the input guys. im just trying to get info before i start buying stuff. im looking at the stage 4 from zzp performance plan to put that on.

XM15

The more research you do, the better. You can never know too much about what you're going to purchase.

sick06cobalt

honestly are you worried about your warrenty?

wolfcrouser

i was thinking about that too.whats your opinion on it should i just get the gm stage 2? or an aftermarket stage?

Sergio

Exhaust is huge for the SS/SC. Consider that the manifold is only a 1.75" outlet, the downpipe has a big kink and all three Ecotecs use the same cat back. Choose parts with the complete system in mind. Additional reading in exhaust design should help you see how different parts increase/move/pivot the power band. One more thing - our cars are supercharged, so they follow NA exhaust design rules except the effects are amplified and that's why you can get some great power here.

As for the intake, the stock airbox/filter combo is fairly restrictive and the piping gets all ribbed near the throttle body. So some gains to be had here, but not near as much as the exhaust.

NUMBERS!!

Exhaust: -10 to +25 whp (Seriously!! Don't just slap parts together... research and design!!)

Intake: 5-8whp

nich7601

I would go with stage 2, especially if it's a new car. No need to throw out a warranty.

Regardless of HP gains though, intake and exhaust are a great way to start, if not even for the power gains. The sound is worth it enough

ChefSS

I have a full exhaust and an airbox mod, and I gained about 27hp. If that helps you.

sick06cobalt

okay heres my opinion... dont just go and buy a stage 2 kit.. you can buy a used belt and hub for cheap and then get nates 2.9 pully and injectors... or even used injectors... thatll save you some money...

wolfcrouser

this is a stupid question,but im new here is nate a member here? if i get the parts from him i should still get the reflash from my dealer right?

sick06cobalt

honestly dont waste your money at the dealer.. lol.. the reflash sucks you can get someone to do a custom tune for you on HPT...

bgbearcatfan

yes he is a member here

name: nherbst454

Here's his ebay site, http://myworld.ebay.com/ebaymotors/nherbst454/

wolfcrouser

would that void my warranty if i dont reflash at the dealer?

bgbearcatfan

they will prolly give you crap about it, or fight you over it..

sick06cobalt

if you dont feel like fighting... just do it at the dealer... but if you dont care if they find out then say... well ill do it myself lol

bgbearcatfan

just start off with the dealer tune, then see how serious your gonna get with any future mods.. Prolly over time you just wont give a **** and get someone to give you a better tune.

wolfcrouser

ive searched the forum.im trying to find out what the H/E does and will i be needing it.sorry i know its off the subject.

sick06cobalt

Heat exhacnger... = intercooler... same thing

Texas SS

I have Stage 2 and GMPP catback
I love it but i only got them b/c i have an 07 so im keeping my warranty
but once its over
haha NEW PARTS