I installed a cat delete and removed it after having a severe loss of low end torque. I reinstalled the cat and the power came back. The 1330 is very sensitive to back pressure.
Hi ... I have a 2014 RT-S that I did this to and it now sounds great instead of a sound like a sewing machine . I see You have the Asian market exhaust . I got a short F3 muffler of ebay (what the f3 come with in the USA) it sounds like a beast
I have used a cheap extension straight off the cat before and it does have a nice sound. I wanted to get the exhaust a little further rearward and still have the good sound so I installed straight stainless tubes in my F3 secondary muffler.
