Clean01Yota
New member
Hello all! I am new here so thanks in advance for setting me on the right path. So far, I have installed an Airaid intake and Airaid Throttle Body Spacer. I want to get a little more growl out of my 4Runner, and have always trusted Borla. The two mufflers of interest include the Borla XR-1 (Part# 40941), and the Borla Pro XS (Part# 40363). The XR-1 Sounds great, but I cannot find a clip of the Pro XS. The Pro XS is already the correct diameter, versus the XR-1 which has a 2.5" inlet/outlet and would need a flange adapter. Does anyone have any experience with the Pro XS? (Previously Borla's "Turbo" Line). 