McLaren 600LT US Spec Valveless Exhaust – aka the MSO Exhaust
This is the exhaust the 600LT should have come with. The US-spec system ditches the valves and back box entirely — it's a straight-pipe setup that delivers unadulterated, unrestricted sound at all times, not just in certain driving modes or at high revs. Genuine OEM McLaren part. In stock.
Key Differences vs. the UK Valved System
- No exhaust valves — full, unfiltered sound throughout the rev range, in every driving mode
- Lighter weight — no valve mechanism, no back box. You're dropping approximately 8kg
- No software changes needed — no ECU updates, no remapping required
- Pure, unrestricted sound — slightly louder and sharper than the UK-spec system
Take a deeper dive into the differences by reading our blog post
Fitting to a UK Car — It's Plug and Play
Installing the US-spec exhaust on a UK 600LT is a simple, hassle-free swap. Just unplug the valve solenoid and tuck it away neatly inside the car. No warning lights, no issues. It's a completely plug-and-play upgrade — no remaps, no ECU work, no headaches.
IN STOCK