Stone Exhaust Lexus RX AL20 8AR-FTS Cat-Back Valvetronic Valved Exhaust System – RX200t / RX300t (2015+) – OBD Plug-and-Play Controller – PP503S
Stone Exhaust Lexus RX AL20 8AR-FTS Cat-Back Valvetronic Valved Exhaust System – RX200t / RX300t (2015+) – OBD Plug-and-Play Controller – PP503S
Stone Exhaust Lexus RX AL20 8AR-FTS Cat-Back Valvetronic Valved Exhaust System – RX200t / RX300t (2015+) – OBD Plug-and-Play Controller – PP503S
Stone Exhaust Lexus RX AL20 8AR-FTS Cat-Back Valvetronic Valved Exhaust System – RX200t / RX300t (2015+) – OBD Plug-and-Play Controller – PP503S
Stone Exhaust Lexus RX AL20 8AR-FTS Cat-Back Valvetronic Valved Exhaust System – RX200t / RX300t (2015+) – OBD Plug-and-Play Controller – PP503S
Stone Exhaust Lexus RX AL20 8AR-FTS Cat-Back Valvetronic Valved Exhaust System – RX200t / RX300t (2015+) – OBD Plug-and-Play Controller – PP503S
Stone Exhaust Lexus RX AL20 8AR-FTS Cat-Back Valvetronic Valved Exhaust System – RX200t / RX300t (2015+) – OBD Plug-and-Play Controller – PP503S
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Stone Exhaust Lexus RX AL20 8AR-FTS Cat-Back Valvetronic Valved Exhaust System – RX200t / RX300t (2015+) – OBD Plug-and-Play Controller – PP503S

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Stone Exhaust Lexus 8AR-FTS AL20 RX Cat-Back Valvetronic Exhaust System for RX 200t and RX 300t — Part No. PP503S

Unlock the performance, sound and daily-drive refinement your Lexus RX deserves with the Stone Exhaust Cat-Back Valvetronic Exhaust System for the AL20 RX 200t and RX 300t with the 8AR-FTS engine. This premium cat-back exhaust delivers switchable sound on demand, enhanced flow, OEM-level fitment and zero-drone cruising. If you are searching for Lexus RX 200t exhaust, Lexus RX 300t exhaust, Lexus AL20 cat-back, 8AR-FTS performance exhaust or Valvetronic exhaust for Lexus RX, this is the upgrade you want.

Developed using 3D scanning, reverse engineering and in-house dyno testing, Stone engineers have created a precise OEM-fit solution that transforms the driving experience. At Nforcd we have fitted and used Stone Valvetronic systems and feedback from our customers has been outstanding for quality, sound and everyday usability.

Why choose this Lexus RX cat-back exhaust

  • Designed specifically for Lexus AL20 RX 200t and RX 300t with the 8AR-FTS engine
  • Valvetronic switchable sound: Quiet when you want it, aggressive when you need it
  • Plug-and-play OBDII controller with remote for ON, OFF and AUTO valve modes
  • Eliminates drone commonly found on the standard exhaust system
  • One-piece design with machine welding for robust durability
  • 3D scanning and reverse engineering for precise OEM fitment
  • In-house R&D and dyno-developed for performance and tone
  • Part Number: PP503S

Valvetronic control with plug-and-play convenience

The Stone Valvetronic system gives you total control over your RX 200t or RX 300t exhaust note. Use the dedicated remote to select:

  • ON for valves open and a deeper, louder performance tone
  • OFF for valves closed and refined, drone-free comfort
  • AUTO to open and close the valves automatically at your chosen RPM

The control unit connects to the OBDII port for a true plug-and-play installation. No complicated wiring, just instant control and adaptable sound for every journey.

OPF delete option included

Stone offers an OPF delete solution free of charge, allowing you to install this cat-back on OPF-equipped cars without triggering error codes. No ECU coding is required to remove OPF faults when using this solution.

Engineered for precision and reliability

Stone Exhaust leverages advanced R&D to deliver consistent performance:

  • Reverse engineered via 3D scanning of OEM components to identify and improve flow paths
  • 7-axis CNC bending achieves up to 98% roundness with minimal material wear at tight bends
  • Crisscross and overlapping welding increases penetration and strength at high-heat junctions
  • Direct spot welding using mechanical arms for accuracy, durability and a clean finish
Stone Exhaust 3D Scanning and Reverse Engineering for Lexus RX 8AR-FTS
Stone Exhaust 7-Axis CNC Bending Precision
Stone Exhaust Crisscross and Overlapping Welding
Stone Exhaust Direct Spot Welding

Compatibility

Engine: 8AR-FTS

Chassis: AL20

  • Lexus RX 200t (2015+)
  • Lexus RX 300t (2015+)

Part number

PP503S

Warranty

Backed by a Stone Exhaust 2-year warranty for peace of mind.

Professional fitting available

We recommend professional installation for best results. Nforcd offers fitting at our Warwickshire facility. Request a quote: Sales@nforcd.com.

Photos and video

Stone Valvetronic System Installation

Search-friendly terms

Lexus RX 200t cat-back exhaust. Lexus RX 300t cat-back exhaust. Lexus AL20 RX exhaust system. 8AR-FTS exhaust upgrade. Lexus RX Valvetronic exhaust. RX200t performance exhaust UK. RX300t performance exhaust UK. Stone Exhaust Lexus RX. Lexus RX cat back with valve control. Plug-and-play OBD exhaust controller. Drone-free Lexus RX exhaust. Switchable valve exhaust for Lexus RX 8AR-FTS. PP503S.

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