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'05 STI Mod Suggestions, Best Bang for the Buck

Posted: Thu Sep 28, 2006 10:12 pm
by Phibs
So I have a stock 05 STI and I'm looking to beef it up as it's starting
to feel slow ;) I live near Sabre and will bug him to help me install the parts so that's not a problem.

My initial thoughts:

Cobb Stage 2 Package
- AP
- TBE

Cobb Main Pulley
Cobb SF Intake System ( Short Ram )

Thoughts, Comments, Suggestions?

Posted: Fri Sep 29, 2006 12:17 am
by complacent
Skip the intake, you're not going to need it yet. The power gains with an intake are well proven to be *almost* nil, except for those with 500+awhp. Save teh $ for either a protune (more hp than just an off the shelf flash) or get started on the suspension (springs, sways, etc)

If you don't have the factory short throw there are a couple good aftermarket choices as well.


if all else fails, get some m4d tyt3 n3ons y0!!
:rolllaugh:

'05 STI Mod Suggestions, Best Bang for the Buck

Posted: Fri Sep 29, 2006 12:48 am
by Phibs
LOL m4d n30nz y0!

Ok sounds good with the intake. So the AP + TBE is a pretty proven combo.
Will the main pully help at all? Any other 'easy' power gains to be had?[/quote]

Posted: Fri Sep 29, 2006 10:12 am
by complacent
The lightened crank pulley is really only going to free up *maybe* a hp or two, nothing big. I think the advantage to the pulley is a slightly greater (lighter?) throttle response. I think it's worth it, I have the Perrin crank pulley on my STi.

APE+TBE is a nice boost in power. Anything beyond that and you're going to be swapping out injectors... A HUGE difference in cost, as well as labor. Start with the above, and then see how fast you want to spend. :twisted:

(yes, the second half of my last sentence is worded correctly. ;) )

Posted: Fri Sep 29, 2006 3:45 pm
by drwrx
I agree, the AP and TBE are absolutely the first things to do!

The K&N Typhoon intake is good for 10-12 whp and 10-12 ftlbs. I was there, I saw the proof. But at $200+ it ain't cheap.

Headers are another worthwhile mod. If your thinking cheap, think Gruppe-S or Borla (good for about 12-14 whp / 14-18 ftlbs). If money is no object, think Perrin (good for 20+whp / 20+ftlbs)

I also have a lightened/underdriven pulley and with the exception of slightly better throttle response I don't see any gain in it.

One last relatively inexpensive upgrade would be a big ebay TMIC. They go for about $250 and have a 720 c.u. core.

Posted: Fri Sep 29, 2006 5:23 pm
by Mr Kleen
first thing you're gonna wanna do is remove your rear brakes and throw them behind your house.

where do you live again?

:rolllaugh: don't listen to me, but Colin and Doc know of what they speak.

Posted: Fri Sep 29, 2006 5:43 pm
by Sabre
Yep, Colin and Darrin gave you the best advice :) When you want more power after that, you start getting into the 1000's with a new turbo and upgraded fuel system.

Posted: Fri Sep 29, 2006 6:01 pm
by drwrx
Mr Kleen wrote:first thing you're gonna wanna do is remove your rear brakes and throw them behind your house. where do you live again?
Two problems with that:
05 STi 5 x 114 bolt pattern and no e-brake for you!

Posted: Tue Oct 03, 2006 5:36 pm
by onelove
I agree with the guys here.

I have a TBE, Access Port and Cold Air Intake and the jump in performance is signficant.

I have been told that you really don't get the FULL benefit of the intake until you get a Protune.

I'll be doing that before year end, so I will let you know as soon as it's done.