DP options for twin scroll turbo?

John2.5RS · 08-22-2006, 10:05 AM

I have a vf-37 turbo on my rs, I'm currently using the stock DP but I would like to find a better replacement. Non catted prefered, but I just need to know my options.

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Hyper · 08-22-2006, 10:18 AM

Zerosports, Prodrive, Scoobysport (I believe they make them in limited number), some other JDM brands...... all $$$ for being a brand and a rare item

I just bought a used helix catless DP for a good price, and we cut of the bellmouth section from my stock DP and welded it to helix

then we put back all shielding and it looks like stock with the cat if you are looking from the engine bay!

I also bought the twin scroll flange (I still have it somewhere if you decide to go this way) that you can use with non-twin scroll downpipes, but that requires more custom work as you can't just cut n weld since twin scroll is a different shape and you have to extend the diameter of the bellmouth

John2.5RS · 08-22-2006, 12:25 PM

The thing that I don't get is it's not a 'rare' Item in other countries. all overseas ver. 8 sti's came with the twin scroll IIRC.

Kostamojen · 08-22-2006, 12:44 PM

Shipping them over here is what makes them rare...

Anyway, i'd just go custom if I were you, get the bellmouth section and use something else for piping.

John2.5RS · 08-22-2006, 01:19 PM

The only problem is that I still would like to keep the stock catted DP on the side for emissions.

Kostamojen · 08-22-2006, 03:00 PM

Ya, thats true, i'd keep the stock one as well...

See if another stock one pops up for sale too.

Hyper · 08-23-2006, 02:50 AM

Quote:

Originally Posted by John2.5RS

all overseas ver. 8 sti's came with the twin scroll IIRC.

by ALL I assume you imply JDM, as EDMs never came with twin scroll

as for emissions.... aren't stock STI/WRX midpipes catted?

John2.5RS · 08-24-2006, 12:14 AM

I only have one cat in the downpipe. no pre turbo cat.

08-22-2006, 10:05 AM	#1
John2.5RS Scooby Guru Member#: 1140 Join Date: Mar 2000 Chapter/Region: SCIC Location: On the road Vehicle: 2013 Ecoboost'd F150 Grey	DP options for twin scroll turbo? I have a vf-37 turbo on my rs, I'm currently using the stock DP but I would like to find a better replacement. Non catted prefered, but I just need to know my options. * Registered users of the site do not see these ads.

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08-22-2006, 10:18 AM	#2
Hyper Scooby Guru Member#: 15822 Join Date: Feb 2002 Location: MOCKBA Vehicle: 1999 WRB GM6 2.12cc V9 Type RA	Zerosports, Prodrive, Scoobysport (I believe they make them in limited number), some other JDM brands...... all $$$ for being a brand and a rare item I just bought a used helix catless DP for a good price, and we cut of the bellmouth section from my stock DP and welded it to helix then we put back all shielding and it looks like stock with the cat if you are looking from the engine bay! I also bought the twin scroll flange (I still have it somewhere if you decide to go this way) that you can use with non-twin scroll downpipes, but that requires more custom work as you can't just cut n weld since twin scroll is a different shape and you have to extend the diameter of the bellmouth

08-22-2006, 12:25 PM	#3
John2.5RS Scooby Guru Member#: 1140 Join Date: Mar 2000 Chapter/Region: SCIC Location: On the road Vehicle: 2013 Ecoboost'd F150 Grey	The thing that I don't get is it's not a 'rare' Item in other countries. all overseas ver. 8 sti's came with the twin scroll IIRC.

08-22-2006, 12:44 PM	#4
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: haha XD Vehicle: 95 L AWD LIFTED!!! 1970 Subaru FF-1 Coupe	Shipping them over here is what makes them rare... Anyway, i'd just go custom if I were you, get the bellmouth section and use something else for piping.

08-22-2006, 01:19 PM	#5
John2.5RS Scooby Guru Member#: 1140 Join Date: Mar 2000 Chapter/Region: SCIC Location: On the road Vehicle: 2013 Ecoboost'd F150 Grey	The only problem is that I still would like to keep the stock catted DP on the side for emissions.

08-22-2006, 03:00 PM	#6
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: haha XD Vehicle: 95 L AWD LIFTED!!! 1970 Subaru FF-1 Coupe	Ya, thats true, i'd keep the stock one as well... See if another stock one pops up for sale too.

08-24-2006, 12:14 AM	#8
John2.5RS Scooby Guru Member#: 1140 Join Date: Mar 2000 Chapter/Region: SCIC Location: On the road Vehicle: 2013 Ecoboost'd F150 Grey	I only have one cat in the downpipe. no pre turbo cat.