wrx cat - ClubWRX Forum - Subaru Impreza WRX and STi Community and Forums

bikerboy_140 · 08-27-2008, 06:14 PM

so im kinda new to the subaru since i just bought one 2 weeks ago. if i hollow out the cats will it make it run worse? will i have to retune the ecu?

idipskoalmint · 08-28-2008, 05:18 AM

You don't need a tune, but you really should get one.

Gut the OEM UP
Bosal shorty DP
Gut the OEM 3rd cat

When you get enough $$, get it tuned.

**302@12psi** · 08-28-2008, 06:56 AM

Rather then gutting the stock stuff I'd look into a UP and a used DP of your choice. There are plenty of deals to be had. Gutting the cats is dangerous to your health, time consuming, and your stock cats are worth money.

bikerboy_140 · 08-28-2008, 07:58 AM

hey thanks. would i have to take it to a dealer to get it tuned?

wrxtreme06 · 08-28-2008, 08:00 AM

haha i doubt you'd see any mod friendly dealers that provide tuning services.

you could find a local tuner in your area, purchase an accessport, or do opensource turning with a tatrix cable

wrx0131 · 08-28-2008, 09:18 AM

i wouldnt gut the cats if i was you because if you ever wanted to return the car back to stock you wouldnt be able to....just buy an aftermarket downpipe and then take it to a tuning shop to get it tuned

08-27-2008, 06:14 PM	#1 (permalink)
bikerboy_140 Registered User Join Date: Aug 2008 Posts: 7	wrx cat so im kinda new to the subaru since i just bought one 2 weeks ago. if i hollow out the cats will it make it run worse? will i have to retune the ecu?

08-28-2008, 05:18 AM	#2 (permalink)
idipskoalmint Registered User Join Date: Aug 2007 Location: Albany, NY Posts: 3,683	You don't need a tune, but you really should get one. Gut the OEM UP Bosal shorty DP Gut the OEM 3rd cat When you get enough $$, get it tuned. __________________ CarDomain WRXModders 2005 DomTuned WRX STi "Never trust anything that bleeds for a week and lives ..."

08-28-2008, 06:56 AM	#3 (permalink)
302@12psi Moderator Join Date: Jul 2003 Location: Maryland Posts: 10,228	Rather then gutting the stock stuff I'd look into a UP and a used DP of your choice. There are plenty of deals to be had. Gutting the cats is dangerous to your health, time consuming, and your stock cats are worth money. __________________ 0-60 faster then your first sexual experience. "You've come far, and though you're far from the end You don't mind where you are, cause you know where you've been"

08-28-2008, 08:00 AM	#5 (permalink)
wrxtreme06 Sammich Makin Pwincess #1 Join Date: May 2007 Location: oviedo, fl Posts: 3,879	haha i doubt you'd see any mod friendly dealers that provide tuning services. you could find a local tuner in your area, purchase an accessport, or do opensource turning with a tatrix cable __________________ your friendly, neighborhood subaru girl =) 06 wrx impreza: cobb stage II! // myspace; a place for friends hawk-eye alliance #1111 // wingl3ss @ll!ance #17

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

08-28-2008, 07:58 AM	#4 (permalink)
bikerboy_140 Registered User Join Date: Aug 2008 Posts: 7	hey thanks. would i have to take it to a dealer to get it tuned?

08-28-2008, 09:18 AM	#6 (permalink)
wrx0131 Registered User Join Date: Jul 2007 Location: new york Posts: 324	i wouldnt gut the cats if i was you because if you ever wanted to return the car back to stock you wouldnt be able to....just buy an aftermarket downpipe and then take it to a tuning shop to get it tuned

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
2008 Impreza Photos/Info galore!	Weasel 555	New Cars/Prototypes Forums	565	01-27-2008 10:34 PM
How do you make the STi into a highway monster?	RoadStar	Everyday Impreza Talk	122	11-27-2007 09:28 PM