[chargedvette02]

Originally Posted by 07STILimited

Yeah I hear yuh. I just don't get why the numbers are so different if Cobb is being honest. Anyway, I might end up stage 2 like you suggest. I know the stage 2 maps are developed for Cobb down pipes and cat backs. Can I just use any decent catted down pipe? Also, can I run stage 2 with just a down pipe or is a cat back exhaust a must? Thanks

Quit being a cheap @ss and go stage II, reliability is still a big ....

Still waiting for PM BTW.

And yes you can run stage II on the stock cat back as long as the dp mates up with it. I think you will miss out on a minuscule (spelling) amount of powaaaaa though.

[VanishingPoint]

Stage 1 caused the power to come on quicker and smoother. No more wait to 4000rpm and hold on. Other then that I didnt see much differance.
If you go with the AP getting a down pipe is worth the trouble.
I went with a DP and intermediate pipe with the stock axle back for the "you cant tell" look. For stage 2 this is plenty.

Tony

[johnlude85]

Originally Posted by 07STILimited

According to Cobb the 07 stage 1 map adds "+37 Horsepower and 50 lb-ft Torque." From EVERYTHING I've read stage 1 doesn't do anything even close to what Cobb claims. Is this just Cobb blatantly lying and misrepresenting their product? If not, then where are they getting these numbers, and why doesn't anyone who has stage 1 in the real world see these gains?

everything you see on a dyno is a corrected number...an ACTUAL hp number. just like subaru says our cars are 300 horse power stock. thats kind of misleading. you lose so much through the trans, axles, and trying to put it to the ground. so much that a stock sti will put down 240 horse on a dyno. cobb is using those numbers for reference at the crank just like subaru. why? well, will you spend 700 dollars on something that will net 11 horse power? no probably not. especially when the 200 dollar intakes they have out there for our cars claim 11-13 horse power too. im trying to buy an ap right now, money just isnt right yet. stage one isnt that different other than a nicer car to drive...which in itself, is a significant diference. but stage 2 is really where it shines. and then after that, you get a tune and can use the ap for that too for map switching and such.

[boozy04]

yes....!

[07STILimited]

Originally Posted by VanishingPoint

If you go with the AP getting a down pipe is worth the trouble.
I went with a DP and intermediate pipe with the stock axle back for the "you cant tell" look. For stage 2 this is plenty.

Tony

The intermediate pipe is the pipe in between the dp and the pipe with the muffler correct? I haven't seen this pipe sold separately. Could someone please post a link or tell me what brands sell this piece and about how much it will run? Also, running stage 2 is there going to be much (if any) difference in power between a full turbo back exhaust and an exhaust that uses the stock axle back? Thanks

[VanishingPoint]

Originally Posted by 07STILimited

The intermediate pipe is the pipe in between the dp and the pipe with the muffler correct? I haven't seen this pipe sold separately. Could someone please post a link or tell me what brands sell this piece and about how much it will run? Also, running stage 2 is there going to be much (if any) difference in power between a full turbo back exhaust and an exhaust that uses the stock axle back? Thanks

My son went with the Cobb TBE and we ran at the track.
I ran 3mph faster, but I used a gallon of tolulene in the gas tank.
I would say they would have ran the same if I did not use the juice.

More then stg 2 and the axle back may need an upgrade.

Check the sponser list most have the intermediate pipe. I went with Maddad. The Cobb one is more shiney.

[Laki747]

I have 07 STI and i installed Prodrive performance pack 2 months ago.This is basically stage 1 tuning because it consists of re-programed ECU, higher capacity fuel pump and some exhaust parts but they are there only for sound.Down pipe wasnt changed.It goes a little bit better that is for sure...the most noticable thing is that the car works much smoother rather then goes much faster...

[LSE]

I didn't like stage 1 at all. yes it felt quicker to boost and a bit more powerful, but it seemed to suck up more gas too

I only had it for a week.

[WRX4ME LE 482]

Stage 1 is a bigger difference for 07 STis than any other. I think it increases your max boost from 15 to 16.5 or 17 and, more importantly, it gets rid of (or reduces) the closed loop delay. Peak numbers probably arent tremendously higher, but driveability is MUCH better.

BTW, it is safer...

[07STILimited]

Originally Posted by WRX4ME LE 482

more importantly, it gets rid of (or reduces) the closed loop delay..

What is that?

[mxturboracer86]

Originally Posted by sujak

When at a dyno day getting a baseline on my 100% stock 05' STi, local tuner Matt from 555 motorsports was there, he wanted to see what Stage 1 would yeild.

First, stock the car put down 230.1whp and 240.9wtq the next run stage 1 it put down
241.2whp and 252.1wtq so a gain of 11WHP and 12WTQ, this was on a Mustang Dyno.

Would it be worth it for power, no. however i hear Stage I will smooth out the car making it less jerky low-end, but overall i'd say suck it up for a little bit and go stage II

yep, it was a completely stock STi (even snorkle still in) and it gained 15WHP and 25 WTQ (within a psi of the stock boost)

555 Motorsports Chicago Tuning Trip & Dyno Day #'s - NASIOC

[oscargarza88]

i have been running only stage 1 for like 3 months now and i like it. I have a dowpipe on the way, i have been stage 2 but i sold the parts and i have boughts them again. Stage one does feel faster and i feel like it spools faster and sooner. Stage 2 is defenetly an amazing difference and great deal for like 150-200 for a used one...
i say go for it u will like it

[Davewavy]

I went to Stage 1 three days ago. My butt-dyno tells me it's a bit quicker. Beyond that, there is a 4-way stop that I almost always have to myself. Before I went to stage 1, the best top speed I had before the 50MPH sign was 75MPH, perfect (For me) shifts. Yesterday, I hit 80MPH with less than perfect shifts. It's slightly uphill to that sign. Based on that, I'd say it's quicker. Not a ton, but definitely quicker. The jury's out on gas mileage, though I seem to be burning it at about the same rate as usual. I hit some really heavy slow traffic on my commute most days, so I'm going 5MPH or less a lot of the time. I got my V1 AP for $320. If I get a $200 DP, then I'll be stage 2 for just over $500, assuming I install the DP myself. Lots of power for cheap.

[Cr8zyJAP07]

feels a lil faster and smoother thats it.

[idrivearocket]

I returned my stage 1 map back to stock when I gave it back to the dealer over a week ago, I just drove my car with the stock map (just got back from a long vacation) and it really sucks... stage 1 is a good improvement. I'd bet a protuned stage 1 would be quite useful, although you might as well buy a downpipe and be done with it.