Lexus ISF Xforce Varex with PPE Headers

12 Lexus ISF. PPE unequal length catless headers with Xforce Varex catback. RR tune and Stock elbow/filter in this video. Had an intake issue and will reinstall tuned intake next week.

This is my 7th exhaust setup on my second ISF. I wanted the best of all worlds with maximum power with catless headers and great sound, but also no drone and the flexibility to be stock silent for early morning cold starts in a quiet neighborhood. The Xforce Varex deletes the stock secondary cats and has two bullet style resonators and valved mufflers. Comes standard with 2 remotes as well as an optional Bluetooth controller that can adjust your valves settings by GPS, by RPM’s, or just by a phone/tablet.

Wide open it sounds nearly as loud as the PPE+Borla Bazooka I had, though slightly quieter as the mufflers even wide open are heavily resonated. Closed valves there is absolutely zero drone which is a HUGE plus and most would assume it’s stock. I typically drive around with it one click open for a nice bit of sound and very minimal drone, closed valves for cold starts, and open valves for fun days. Even with wide open, it drones much less than my Borla/PPE combo did. Overall I am very happy with the exhaust. My research has led me to assume it’s cheaper with weld design and materials, but still quality enough to not worry about failures or repairs. We will see how it does at the drag strip compared to old setup in a few weeks...