I installed Tanabe catback exhaust on my 2007 IS 250. After looking under the car there is a Second cat in the rear just before the y pipe.
Could I have an Exhuast shop cut that off and make me a custom test pipe? Should give me a little more sound but not much gain?
Anyone know for sure or who could do it?
**Picture attached on the CAT in question looks like duals from the motor to the single cat (the one I want gone no sensors) back out to a Y pipe**