Gruppe-S V2 EXHAUST Manifold

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Dec 5, 2005 | 08:36 AM

#16

unstble

Registered User

Joined: Nov 2004

Posts: 1,769

From: East Bay Area

Car Info: WREX

Quote:

Originally Posted by gruppe-s

Hi,
Our Gruppe-S V2 Manifolds are unequal length and retain the Suby boxer sound.

We've had good success with them and they make pretty good power. Roughly 10-15whp and 15-20+ tq.

Here's a dyno

Dyno graphs shows testing with 04 WRX catted downpipe, uppipe, exhaust, versus addition of manifold only.

Let me know if you have more questions.

Thanks,
Preston

So, these numbers were gained without a reflash, right?

If so, What kind of numbers could one expect from a reflash with the same above mods?

Dec 5, 2005 | 10:45 PM

#17

jwkirk

Registered User

Joined: Oct 2005

Posts: 2

From: Virgina Beach, VA

Car Info: 2004 Subaru Impreza WRX

i am going to get a set of these headers. where can i get the ceramic coating done? what are the real cons about wrapping the headers? what are the cons to the new headers compared to stock? Will it hurt the headers driving in cold weather and cooling off too fast and what about long trips? What is the tap made for on the headers?

Dec 24, 2005 | 08:24 PM

#18

Aznhyperracer

Thread Starter

Registered User

iTrader: (4)

Joined: Dec 2002

Posts: 295

From: Honolulu

Car Info: 2004 WRX

Quote:

Originally Posted by flipmode

I have it on my 02 wrx. i also have helix uppipe, dp, and blitz nur spec catback. i like it and the car still sounds badass.

still have the rumble boxer sound....?

Dec 25, 2005 | 05:30 PM

#19

unstble

Registered User

Joined: Nov 2004

Posts: 1,769

From: East Bay Area

Car Info: WREX

What do you guys think of these ebay headers: http://cgi.ebay.com/ebaymotors/T-Pro...spagenameZWDVW

Are these copies of any name-brand header? Does anyone have a set installed? If you do...Do you still have the rumble sound, and what about performance?