KID Ryker
Member
My wife has a 2015 f3s and so does her sister. Her sister put a Cat bypass pipe on hers a little too loud for my wife. This weekend I remove her 1st muffler which has the cat in it. With out cutting any holes I remove the cat from the muffler. From the motor side look in the muffler you can see the cat. I used a tire iron to beat the cat in to small pieces then turn the muffler upside down. Take the cat parts out of the same hole. What I got was a lower tone out of the f3.