This is a discussion on WARNING FOR BUYING CATTED DOWNPIPES!!! within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Originally Posted by Sinister BPMs do have a cat and a resonator in the midpipe. So I believe you. As ...
Hawk-Eye Alliance #010
if you are really that concerned perrin makes a two section down pipe with two high flow cats but if you really want power go get a catless down pipe for half the money n keep ur old down pipe the swap once a year take s a hour tops just man up n do it
Hey guys just a heads up from my expirience with the unhappy emmissions booths in Washington is that the tests are more strict based on regional population. So say in Seattle the test is very strict and in Po-Dunk eastern washington emmissions aren't required. I don't know if that applies country wide, but it is something to keep in mind for you area when getting ready for your car's next prostate exam.
That's true here in colorado too.
if it is really strict there i always a shop that will pass u for a few more bucks
our state doesn't have shops do it. There are state ran testing stations.
OBP 2010 5dr *traded*
SWP 2013 FRS
My name is Shawn, I'm a Devout Practicalist and I'm addicted to flat4's
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SUCH IS MANGO!
my car came catless, but i figured why pollute the environment for a 1% gain? and the smell was bad, and iit was too loud for my tastes.
so i added a vibrant racing cat and i like it alot better.
its a win-win! 99% of the performance of catless, with a 90+% reduction in emissions.
--- 1999 Impreza WRX STI JDM Version 5 Sedan ----
Threw my stock dp on today for my emissions test, and passed!
2003 Subaru Wrx Vf39'd
Bugeye mafia #300
Sponsored By: WRXPro.com
this thread is amusing. back in the hey day i had a 2002 wrx running a CAI, and 3" TBE.
had the uppipe factory cat, and 1 highflow cat on the downpipe. passed in cali.
now trying to determine what to do for '11 sti sedan. just started researching today
Just to clarify, AWD Subarus in California do not receive a dynamometer test (all dynos are 2wd.) In which case, NOx cannot be measured. Keep in mind there is also a visual inspection for your catalytic converters and any replacement has to be CARB certified to pass!