I want something to replace my cat. converter, and RRM test pipe seem to be the only thing out there that won't set my second O2 sensor off. I'm pretty sure it's a bolt-on, because on the website it says keep the old cat for regular road use. I personally am looking for a permanent replacement, so is it possible to weld the RRM test pipe on?

 

You can weld it on but it is not necessary. It comes with hardware needed to bolt on and alot easier to install your O2 sensor.

ROAD/RACE

http://www.roadracemotorsports.com/

 

What does that mean? The O2 sensor comes with the test pipe or something? I thought the test pipe just comes with a hole that accomadates the O2 sensor

 

yeah it bolts in. But so does the OEM 2nd cat. It goes perfectly in place, along with a whole threaded for the o2 sensor. very easy install process, I recommend it.

 

Dude do it with that you replace it when smoog test arrives replace it again don't weld ....