Wanting to know because I'm going to have to take them out and put in regular pipe.
Sunday, May 19th, 2019 AT 9:00 PM
1 Reply
STEVE W.
MECHANIC
13,577 POSTS
Welcome to 2CarPros. Why are you removing them? Building a race car? There are a total of three. Two up front attached close to the manifolds and a third under the car. Then you have two O2 sensors up front and a third behind the rear unit.