I ImAZoomer Member : Mazda Protege 5 Dec 15, 2014 #1 I just bought and installed an ebay catback. I love it. Sounds great and fitment was great. Now I am wanting to go a step further. Could I cut off my cat and replace it with a flex pipe and use a non fouler on that second o2 sensor?
I just bought and installed an ebay catback. I love it. Sounds great and fitment was great. Now I am wanting to go a step further. Could I cut off my cat and replace it with a flex pipe and use a non fouler on that second o2 sensor?
