Helix V3 Downpipes - $199 Shipped: Catless / $329 Shipped: Catted!!! Much more too!
Helix V3 Downpipes - $199 Shipped: Catless / $329 Shipped: Catted!!! Much more too!
Helix V3 Downpipe for 02+ WRX / STI - $199 shipped
The Helix V3 downpipe incorporates all the popular features of the V2 downpipe with the addition of an external wastegate provision. This provision allows for external wastegate gases to be vented back into the downpipe. Helix also re-designed the bellmouth to reduce production costs without sacrificing the SS304 mandrel tubing, high quality TIG welding, etc. The end result is a better downpipe at a lower price.

Helix Catted Downpipes for 02+ WRX / STI - $329 shipped
The Helix Catted Downpipe incorporates Helix Power’s first-rate bell-mouth downpipe, with the addition of a 200 cell Metal-Substrate high-flow catalytic converter and thermal barrier heat-shield. The 200 cell Metal-Substrate downpipe has been tested by us to yield 7-10whp over the factory twin cats, while able to pass stringent California smog standards on the WRX / STI. The thermal barrier heat-shield assists in rapid warm-up of the cat for maximum efficiency and helping to reduce engine bay temperatures.

Thanks,
Mark
Phone: (510) 783-5300
We Accept Paypal!
Paypal: sales@gruppe-s.com
When ordering w/ paypal, please include the following:
product name: XXXX
sales rep: Mark
Price including shipping: $XXXX
Shipping address.
The Helix V3 downpipe incorporates all the popular features of the V2 downpipe with the addition of an external wastegate provision. This provision allows for external wastegate gases to be vented back into the downpipe. Helix also re-designed the bellmouth to reduce production costs without sacrificing the SS304 mandrel tubing, high quality TIG welding, etc. The end result is a better downpipe at a lower price.

Helix Catted Downpipes for 02+ WRX / STI - $329 shipped
The Helix Catted Downpipe incorporates Helix Power’s first-rate bell-mouth downpipe, with the addition of a 200 cell Metal-Substrate high-flow catalytic converter and thermal barrier heat-shield. The 200 cell Metal-Substrate downpipe has been tested by us to yield 7-10whp over the factory twin cats, while able to pass stringent California smog standards on the WRX / STI. The thermal barrier heat-shield assists in rapid warm-up of the cat for maximum efficiency and helping to reduce engine bay temperatures.

Thanks,
Mark
Phone: (510) 783-5300
We Accept Paypal!
Paypal: sales@gruppe-s.com
When ordering w/ paypal, please include the following:
product name: XXXX
sales rep: Mark
Price including shipping: $XXXX
Shipping address.
Hey,
I called in the other day about those downpipes with the top part not coated or whatever, sales guy said i was second on the list and he would call me back, never did. I know they're prolly gone and all, but i was wondering how much my total OTD would be for a catted downpipe, install, AP (06sti), and protune would be. You guys installed my Ti helix catback not long ago so hook it up
Would like to do this anytime next week if possible.
I called in the other day about those downpipes with the top part not coated or whatever, sales guy said i was second on the list and he would call me back, never did. I know they're prolly gone and all, but i was wondering how much my total OTD would be for a catted downpipe, install, AP (06sti), and protune would be. You guys installed my Ti helix catback not long ago so hook it up
Would like to do this anytime next week if possible.
Registered User
iTrader: (10)
Joined: Mar 2006
Posts: 2,498
From: Dublin, California
Car Info: 09 STi, 10 Cayman S
329...not bad with a high flow cat...So its able to pass california smog? I would buy this in an INSTANT if you guys could prove this to me. Would cobb stage 2 some how void this smog pass claim?
Originally Posted by pwn
329...not bad with a high flow cat...So its able to pass california smog? I would buy this in an INSTANT if you guys could prove this to me. Would cobb stage 2 some how void this smog pass claim?
Originally Posted by PolishMike
Hey,
I called in the other day about those downpipes with the top part not coated or whatever, sales guy said i was second on the list and he would call me back, never did. I know they're prolly gone and all, but i was wondering how much my total OTD would be for a catted downpipe, install, AP (06sti), and protune would be. You guys installed my Ti helix catback not long ago so hook it up
Would like to do this anytime next week if possible.
I called in the other day about those downpipes with the top part not coated or whatever, sales guy said i was second on the list and he would call me back, never did. I know they're prolly gone and all, but i was wondering how much my total OTD would be for a catted downpipe, install, AP (06sti), and protune would be. You guys installed my Ti helix catback not long ago so hook it up
Would like to do this anytime next week if possible.
Sorry about that. Those 2 downpipes sold in about 5 minutes. The total for that all of those items installed, tuned, and out the door would be $1249.
Originally Posted by pwn
329...not bad with a high flow cat...So its able to pass california smog? I would buy this in an INSTANT if you guys could prove this to me. Would cobb stage 2 some how void this smog pass claim?

Originally Posted by Bolshoi125
do you still have it in stock? or do I have to pre order it?
Originally Posted by stevenkhau
Can you put the cat heat shield over it to conceal it then?
.Thanks,
Geoff
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