600LT US Spec Valveless Exhaust (aka MSO Exhaust)
This is a genuine McLaren part that replaces the UK 600LT exhaust with a straight pipe system, offering a louder, unrestricted sound and reduced weight.
- The description claims the US-spec version has no exhaust valves and no back box.
- The description claims the system is lighter by around 8kg.
- The description claims no ECU updates or remapping are needed.
- The description claims it provides a pure, unrestricted sound.