STI Forum  |  Shop  |  Sponsors  |  Advertise Rules  |  FAQ  |  Members List  |  Calendar
IWSTI.com: Subaru STI Forums
 
Home  |  Register  |  Today's Posts  |  Go Premium Mark Forums Read Create a Member Journal  |  Vendor Deals  |  Member Classifieds

New IWSTI license plate promotion!PLEASE VOTE/RESPOND TO THIS THREAD!Special Order 2008+ IWSTI Gear!

Welcome to IWSTI.com, the largest STI specific forum on the internet, where you can interact with other STI enthusiasts, create a member journal, and receive answers to your questions. Registration is fast, simple and absolutely free, so please register today to start enjoying IWSTI membership privileges! Problem registering? Please contact support.
Go Back   IWSTI.com: Subaru STI Forums > STi Technical Discussion > Engine, Power, & Performance


Reply
 
Thread Tools
Old 06-03-2008, 08:40 PM   #1
Spec C Club
 
Car: 05 Subaru WRX STi
Fav Mod: Bride Zeta III >=)
Location: San Diego, CA
Posts: 1,122
Join Date: Jun 2005
Trader Rating: (7)
Default Need downpipe suggestions...

I know this a pretty vague question, but I need some suggestions in terms of a new downpipe.

Currently I have a Helix Catted DP, but after two Buttonwillow events, the thing is rattling all over the place, and I'm simply getting sick of it. I've tried maneuvering the thing around, but it eventually comes back to old position, which causes the downpipe to rest on the crossmember. I've also tried installing Kartboy hangers, but since the downpipe is literally resting on the crossmember, they don't help.

Things I'm looking for:
1.) Something with no clearance issues at all
2.) 3" piping. Currently running an HKS Carbon-Ti exhaust.
3.) Must be catted.

Money may not be an issue, but please provide suggestions that are realistic (i.e., no $1,000 downpipes please).

Thanks guys.


This ad is not endorsed by this member. Please register or login to hide this ad.
SD 05 STi is offline   Reply With Quote
Old 06-03-2008, 09:02 PM   #2
Silver Member
 
Car: 06 STI / STG 4
Fav Mod: DOM 3.0R + METH!!!!
Location: Vernon, NJ
Posts: 1,194
Join Date: Jan 2008
Trader Rating: (4)
Default Re: Need downpipe suggestions...

Quote:
Originally Posted by SD 05 STi View Post
I know this a pretty vague question, but I need some suggestions in terms of a new downpipe.

Currently I have a Helix Catted DP, but after two Buttonwillow events, the thing is rattling all over the place, and I'm simply getting sick of it. I've tried maneuvering the thing around, but it eventually comes back to old position, which causes the downpipe to rest on the crossmember. I've also tried installing Kartboy hangers, but since the downpipe is literally resting on the crossmember, they don't help.

Things I'm looking for:
1.) Something with no clearance issues at all
2.) 3" piping. Currently running an HKS Carbon-Ti exhaust.
3.) Must be catted.

Money may not be an issue, but please provide suggestions that are realistic (i.e., no $1,000 downpipes please).

Thanks guys.

Hey whats up, bro same problems here with my Helix Catted DP the only time I got rid of the vibes were when I did the Cusco Motor and Tranny mounts it went away.. But after my DOM 3 swap it maneuvered the DP back in the position and the vibes are back it sucks I know.. I went with the Invidia I did do a catless but I would check out there catted its not that expensive and from everybody I have talked to they said the fitment was spot on.. Besides that the Cobb is nice but pricey, the only other I have heard isnt to bad is the Injen but I have never seen one in person.. Honestly I think the Invidia is the best option.
STI-LOS is offline   Reply With Quote
Old 06-04-2008, 12:21 AM   #3
Spec C Club
 
Car: 05 Subaru WRX STi
Fav Mod: Bride Zeta III >=)
Location: San Diego, CA
Posts: 1,122
Join Date: Jun 2005
Trader Rating: (7)
Default Re: Need downpipe suggestions...

Thanks man. I'll check out the Invidia DP. Any particular model / version I should be looking at?

How about any opinions on the Maddad DP? I know it's pricey, but yet I haven't seen any real negatives about it. Can anyone with this DP confirm if there are any clearance issues with this one?
SD 05 STi is offline   Reply With Quote
Old 06-04-2008, 12:33 AM   #4
Gold Member
 
Fav Mod: GT35R 450+WHP Pump No Meth
Location: MD,BASC Club,Team Agile
Posts: 746
Join Date: May 2007
Trader Rating: (4)
Default Re: Need downpipe suggestions...

Resting on the cross member? Pics? Get rid of the kittys in the DP and go with a Magna high flow cat in the mid pipe, problem solved + better flow in the exhaust stream.
04STiguy79 is offline   Reply With Quote
Old 06-04-2008, 06:09 AM   #5
Authorized Vendor
 
Car: 2008 STI
Fav Mod: Coming Soon
Location: Austin, TX
Posts: 378
Join Date: May 2008
Trader Rating: (9)
Send a message via AIM to FlyingPerformance
Default Re: Need downpipe suggestions...

Invidia, I run one on my car(non-catted though).
FlyingPerformance is offline   Reply With Quote
Old 06-04-2008, 05:31 PM   #6
Spec C Club
 
Car: 05 Subaru WRX STi
Fav Mod: Bride Zeta III >=)
Location: San Diego, CA
Posts: 1,122
Join Date: Jun 2005
Trader Rating: (7)
Default Re: Need downpipe suggestions...

Quote:
Originally Posted by 04STiguy79 View Post
Resting on the cross member? Pics? Get rid of the kittys in the DP and go with a Magna high flow cat in the mid pipe, problem solved + better flow in the exhaust stream.
Nope, no pictures, sorry. But the pipe is pretty much touching it when the car is off. I've been under there and tried to move it side to side; one side it will move freely, the other side, it will clunk.

Anyway, any other suggestions?

Thanks.
SD 05 STi is offline   Reply With Quote
Old 06-05-2008, 04:57 AM   #7
Junior STI Driver
 
Car: 2006 STI - Stage 2
Fav Mod: Invidia DP
Location: Austin, TX
Posts: 95
Join Date: Feb 2008
Trader Rating: (1)
Default Re: Need downpipe suggestions...

Quote:
Originally Posted by FlyingPerformance View Post
Invidia, I run one on my car(non-catted though).
I'm ordering the Invidia Catted DP today. It seems to be pretty highly recommended here on IWSTI.
scrapiron7 is offline   Reply With Quote
Old 06-05-2008, 10:25 AM   #8
Silver Member
 
Car: 06 STI / STG 4
Fav Mod: DOM 3.0R + METH!!!!
Location: Vernon, NJ
Posts: 1,194
Join Date: Jan 2008
Trader Rating: (4)
Default Re: Need downpipe suggestions...

Quote:
Originally Posted by 04STiguy79 View Post
Resting on the cross member? Pics? Get rid of the kittys in the DP and go with a Magna high flow cat in the mid pipe, problem solved + better flow in the exhaust stream.

I have the same problem as OP mine is the Helix Catted and for some reason they are like hit or miss some fit fine some are just off a little bit and rest right on the crossmember. When I installed the cusco motor and Tranny mounts it went away, but when I swapped in the DOM 3 it made it rest even more on the crossmember. You feel the vibes at decel like at 3100-2900rpm it vibes my whole console.. It annoying


This ad is not endorsed by this member. Please register or login to hide this ad.
STI-LOS is offline   Reply With Quote
 
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


All times are GMT -8. The time now is 11:43 PM.


Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Designed & Powered by Domain Architect