Hi guys ,
Been searching and searching......I put on HKS downpipe, high flow cat and Buschur catback with BR muffler and am getting the dreaded p0420 (cat inefficiency) code. Tried to install the sparkplug antifouler fix, but there is no space to fit it. If I rotate the exhaust to make room, the rear exhaust hanger is not lined up.
Has anyone been able to fit the antifouler fix with the Buschur exhaust? How did you do it?
Help

 

I have them on mine but my bung was facing to the side and fit perfect. what style exhaust do you have I know some of the earlier bushur's were slip fit. I would contact bushur cause sounds like they made the hole in the wrong spot. If not just get the electronic code delete.
But that is weird man.

 

Thanks for the quick response! I have the slip fit, bought it used from an evom member.

 

did he weld the muffler on??

 

No, it slip fits on.

 

take a hammer and dent the underside of the car to make room for the sensor and anti-foulers heh

 

bought my evo with the Buschur 1st gen exhaust (i think is the one you have) and its dented in on the side with the O2 sensor with the anti fowlers.

 

Trying to avoid this method if possible

 

The exhaust is dented? Not sure if I like this method either

I was thinking of having another O2 sensor bung welded in at a different location to allow for the antifoulers.

 

get the electronic fix

 

just call buschur and let them advise you on how to make it right!

 

Bump...
Guys, need some input from slip-fit Buschur exhaust users out there. Were you guys able to solve your CEL issues with the spark plug antifouler trick, and if so, how did you make it fit-I have no space the way my O2 sensor sits now.
Thanks!

 

are you using one or two anti foulers? if you are using two try using only one

 

Same one i have. its not a huge dent at all. Its honestly barely noticable. The CEL fix has worked great for the previous owner of my car. As for me it started to throw the light. I unscrewed it and it was clogged with black sutt (carbon deposits i guess) and now it hasnt done it.