02 4.0 Explorer Catless Y Pipe

[mmorningstar]

I did a search and all I came up with was old threads about Random Tech, does anyone currently make a catless Y pipe for our Explorers?

 

[IZwack]

How would you get around the O2 sensor issue?

 

[mmorningstar]

the top O2 (precat) would remain, the lower O2 (post converter) can be fooled with a manual fix, you use two "spark arrestors" to space the O2 out and bleed a lower amount of exhaust gas into the sensor thereby tricking it, it's commonly referred to in the Mustang/WRX/etc world as the manual CEL fix and it should work on the 02 ECU's, the newer one's might be tougher though.....

 

[IZwack]

Good deal! I learned something today

 

[mmorningstar]

Good deal! I learned something today

it's a handy little trick, you can probably buy them on ebay too if you don't feel like going through the trouble to make one. Back to the thread, anyone out there know of anyone that makes a catless Y pipe?