[snorky]

Originally Posted by all4bspinnin

i spent 270$ on an upipe/dumptube from turboxs with a flex...

im not about to go through the pain of having to buy ANOTHER uppipe setup...

and yes, we realize that the 3 bolt is better... however... this is my situation and they would proly sell more headers if they marketed to everyone...



...also, you could just make sure the opening to the upipe is the same size as the gasket on the 2 bolt flange

Buy a Perrin ELH

[WolfPlayer]

Originally Posted by snorky

Buy a Perrin ELH

Actually, just buy a Gruppe-S ELH. It is the same as the maddad except with the 2-bolt flange and no EGT bung.

Gruppe-S Equal Length Exhaust Manifold

I was considering the Gruppe-S version until I saw this post. I'd rather have the 3-bolt uppipe and the EGT bung

t

[drofnums]

Originally Posted by WolfPlayer

Actually, just buy a Gruppe-S ELH. It is the same as the maddad except with the 2-bolt flange and no EGT bung.

Gruppe-S Equal Length Exhaust Manifold

I was considering the Gruppe-S version until I saw this post. I'd rather have the 3-bolt uppipe and the EGT bung

t

Merge collector on Gruppe-s is different to fit stock up. Also Gruppe-S EL has a 44mm ID for the runners, which is pretty large. Not sure the ID of the MAD version.

[mofoSTI]

These are the same manufacture as Tomei that is nearly twice the price. Great product for the money. I cant wait to hear the full exhaust set up on an 08 STI.

[BillFromTR]

Originally Posted by BoostJunkie

+1 for a standard 2-bolt version to fit my EWG uppipe

+3...

[all4bspinnin]

Originally Posted by snorky

Buy a Perrin ELH

no.... runners are too small

right now the gruppe-s EL header header has my eye... i love the maddad UEL header though, great sound and perfomance... made great torque

...but ya...

so thats 3 people for a 2 bolt flange... and btw, a 2 bolt is fine if your uppipe has a flex

[WolfPlayer]

Originally Posted by drofnums

Merge collector on Gruppe-s is different to fit stock up. Also Gruppe-S EL has a 44mm ID for the runners, which is pretty large. Not sure the ID of the MAD version.

Gruppe-S and this header will be from the same manufacturer. Same header but with a different end - one for the stock 2-bolt (gruppe-s) and one for the 3-bolt (maddad).

The 44mm ID is the same as the APS. I've witnessed this header on the dyno multiple times. It never lost anything to the stock header ... only gained power and torque across the board (with a tune). There are posts here on this board (I think under MAIC) showing this. I was at that dyno session. Granted, if you wanted to use stock EM then maybe you don't want 44mm. However, I definitely want a larger runner.

t

[WolfPlayer]

Originally Posted by all4bspinnin

so thats 3 people for a 2 bolt flange...

Just get the Gruppe-S. Same manufacturer but with a different end for the stock-type uppipe.

t

[mofoSTI]

I wonder how much better the responce is with the UEL vs EL. The difference in top end with the EL over the UEL might be minimal to sacrifice responce with the EL.

[dc5Aspec'd]

Originally Posted by drofnums

That looks HOT!

+1 subscribed

[drofnums]

Originally Posted by WolfPlayer

Gruppe-S and this header will be from the same manufacturer. Same header but with a different end - one for the stock 2-bolt (gruppe-s) and one for the 3-bolt (maddad).

The 44mm ID is the same as the APS. I've witnessed this header on the dyno multiple times. It never lost anything to the stock header ... only gained power and torque across the board (with a tune). There are posts here on this board (I think under MAIC) showing this. I was at that dyno session. Granted, if you wanted to use stock EM then maybe you don't want 44mm. However, I definitely want a larger runner.

t

From what I read on NASIOC the APS is 41mm, as is the WBR. According to Full Race, 44mm is too big and 35mm is a little too small.

If this header is 44mm ID, I'll definitely need to see some dynoplots on the spool.

Thanks Wolfplayer for posting this announcement on NASIOC. I'm klattery there.

[daddysscp]

Hi guys,

First off, while this has the overall look of the existing GTSPEC, it is a different beast all together. It's not being offered under any brand yet. As was mentioned in the initial post, we passed on earlier design specs since they seemed to be a better fit to the 2.0 motor(and perhaps still a better design for the 2.0 liter US and JDM WRX and STi's that still use a 2.0). But I'd also like to point out even with our unequal length there are differences between MadDad and other brands, such as the use of a MadDad exclusive 45mm Velocity stack instead of a 48mm. So there are slight difference in the products, however from 5 feet away they look the same of course.

Here is a pic of how the pipe size stacks up. The port runs are 42.7mm until two ports merge where it then becomes 45mm. That all leads into a collector that outputs to a 60mm inlet 3 bolt uppipe, and there again is the reason for requiring the uppipe(where else do you get a 60mm inlet uppipe). Note: The uppipe is included of course, it's not a separate purchase. The uppipe in turn has a 45mm veloocity stack shortly before it's outlet, same as we use in our unequal length design that folks are very very happy with. More to come....

R.

[WolfPlayer]

Originally Posted by daddysscp

... The port runs are 42.7mm until two ports merge where it then becomes 45mm. That all leads into a collector that outputs to a 60mm inlet 3 bolt uppipe, ... The uppipe in turn has a 45mm veloocity stack shortly before it's outlet ...

^^^ I just want to clarify: Is this the INNER diameter? Or did you measure the outer diameter?

Thanks.

t

[drofnums]

That's probably going to have some nice top end, but I'm guessing the spool will be a bit slower than stock. My other concern would be what happens going from 60mm to 45mm in the velocity stack. Might work out great, but will have to see in the dynoplots. Any comments on how this very cool design was developed? Thoughts on spool and top end?

Are these manufactured by the same folks who make your unequal length headers?

[daddysscp]

Originally Posted by WolfPlayer

^^^ I just want to clarify: Is this the INNER diameter? Or did you measure the outer diameter?

Thanks.

t

Acutally, I quoted the outter diameter. Inner diameter is 40.7mm, 43mm and 58mm recpectively. Should have quoted those numbers which are more relevant.

R.