Gruppe-s Ej25 Stage 2 Port & Polished Heads!!!

**Gruppe-S** · 01-08-2007, 12:29 PM

Hey guys,

We have a special on the Gruppe-S EJ25 Stage 2 Heads!

GRUPPE-S STAGE 2 HEADS
-Includes heads (no core charge)
-Cosworth 278 Camshafts
-Helix Ti Valvetrain
-Gruppe-S Port & Polish
$2799 Shipped!!NO CORE CHARGE!

*5 angle valve job is available
*Valve upgrade available

Thanks,

Gary
gary@gruppe-s.com
510-783-5300
510-783-4300 fax

boost_happy · 01-08-2007, 02:00 PM

Just curious to know what the increase in hp/tq would be if the heads were added to a stock stage 2 enigne. Would a bigger turbo be necessary to really feel the investment of better heads? Thanks.

**Gruppe-S** · 01-09-2007, 06:33 PM

Quote:

Originally Posted by boost_happy

Just curious to know what the increase in hp/tq would be if the heads were added to a stock stage 2 enigne. Would a bigger turbo be necessary to really feel the investment of better heads? Thanks.

Absolutely, the stock VF39. 38lbs wheel really can't keep up with the flow capability of the Stage 2 head. The cams push the power curve to the right, but if the turbo can't keep up (which it can't), you'll see a bit more midrange and that's about it. I'd recommend at the very minimum an RR500 or FP Green with these heads, but honestly you'll want to run a GT30R or larger for these heads to really come alive.

Cheers,

Gary
Gruppe-S

boost_happy · 01-10-2007, 11:09 AM

Thanks for clearing it up for me, actually looking at a 20g upgrade and I don't think that will be enough to deem these heads worth it, but they sound like great heads. Any word on your STi header coming out? That is what I'm intrested in?? thanks edit- just saw your comments on the header thread, question answered, lets us know when it will be close.

**Gruppe-S** · 01-10-2007, 01:07 PM

Quote:

Originally Posted by boost_happy

Thanks for clearing it up for me, actually looking at a 20g upgrade and I don't think that will be enough to deem these heads worth it, but they sound like great heads. Any word on your STi header coming out? That is what I'm intrested in?? thanks edit- just saw your comments on the header thread, question answered, lets us know when it will be close.

Hi,

Yeah these heads would pretty much be an overkill for the 20G. Have you looked at the RR500 turbo? We just got in 25pcs and they are superior in performance and priced less than most 20Gs. Give me a call if you're interested. As for the equal length header, we're working as fast as possible! Thanks

Gary
Gruppe-S

rekedevoate · 01-10-2007, 01:41 PM

yea, i cant wate till you all finish the header for a 06. count me in for the 1st batch group buy.

CbnSTi · 01-11-2007, 04:41 AM

diabloadsit · 01-21-2007, 04:00 PM

Quote:

Originally Posted by Gruppe-S

Hi,

Yeah these heads would pretty much be an overkill for the 20G. Have you looked at the RR500 turbo? We just got in 25pcs and they are superior in performance and priced less than most 20Gs. Give me a call if you're interested. As for the equal length header, we're working as fast as possible! Thanks

Gary
Gruppe-S

can you let me know about the rr500 you have? pics, specs, price

**Gruppe-S** · 01-22-2007, 05:17 PM

Hi,

Here's the Helix RR500:

Basically it's a 47lbs wheel with a modified TD06 turbine and a race-spec 8cm hotside. It basically does what an FP Green does at 2/3 the price.

Cheers,

Gary
Gruppe-S

01-08-2007, 12:29 PM	#1
Gruppe-S Authorized Vendor Car: 01 Subaru WRX STi Spec C Fav Mod: Coming Soon Posts: 3,727 Join Date: Aug 2005 Trader Rating: (13)	Gruppe-s Ej25 Stage 2 Port & Polished Heads!!! Hey guys, We have a special on the Gruppe-S EJ25 Stage 2 Heads! GRUPPE-S STAGE 2 HEADS -Includes heads (no core charge) -Cosworth 278 Camshafts -Helix Ti Valvetrain -Gruppe-S Port & Polish $2799 Shipped!!NO CORE CHARGE! 5 angle valve job is available Valve upgrade available Thanks, Gary gary@gruppe-s.com 510-783-5300 510-783-4300 fax This ad is not endorsed by this member. Please register or login to hide this ad.

01-10-2007, 11:09 AM	#4
boost_happy Professional STI Racer Car: 06 STI SGM Fav Mod: seatbelts Location: Dallas Posts: 698 Join Date: Feb 2006 Trader Rating: (3)	Thanks for clearing it up for me, actually looking at a 20g upgrade and I don't think that will be enough to deem these heads worth it, but they sound like great heads. Any word on your STi header coming out? That is what I'm intrested in?? thanks edit- just saw your comments on the header thread, question answered, lets us know when it will be close. Last edited by boost_happy : 01-10-2007 at 11:36 AM.

01-22-2007, 05:17 PM	#9
Gruppe-S Authorized Vendor Car: 01 Subaru WRX STi Spec C Fav Mod: Coming Soon Posts: 3,727 Join Date: Aug 2005 Trader Rating: (13)	Hi, Here's the Helix RR500: Basically it's a 47lbs wheel with a modified TD06 turbine and a race-spec 8cm hotside. It basically does what an FP Green does at 2/3 the price. Cheers, Gary Gruppe-S This ad is not endorsed by this member. Please register or login to hide this ad.

01-08-2007, 02:00 PM	#2
boost_happy Professional STI Racer Car: 06 STI SGM Fav Mod: seatbelts Location: Dallas Posts: 698 Join Date: Feb 2006 Trader Rating: (3)	Just curious to know what the increase in hp/tq would be if the heads were added to a stock stage 2 enigne. Would a bigger turbo be necessary to really feel the investment of better heads? Thanks.

01-10-2007, 01:41 PM	#6
rekedevoate Professional STI Racer Car: 2006 Siliver STi Fav Mod: Recaro's Location: HD Germany Posts: 610 Join Date: Jul 2006 Trader Rating: (0)	yea, i cant wate till you all finish the header for a 06. count me in for the 1st batch group buy.

01-11-2007, 04:41 AM	#7
CbnSTi STI Driver Car: 05 Subaru WRX STi Fav Mod: METH Posts: 271 Join Date: Jul 2005 Trader Rating: (1)