Armytrix BMW F32/F33 420i/430i (B48B20)(2016-2019) valvetronic exhaust system

Unleash the full potential of your BMW F32 420i or 430i Coupé—or F33 Convertible—with the ARMYTRIX Valvetronic Exhaust System, precision-engineered for 2016–2019 models powered by the B48B20 turbocharged inline-four engine. This system brings sharper throttle response, a bold motorsport soundtrack, and full valve control through your smartphone or wireless remote.

Whether you're pushing through mountain passes or gliding through city streets, ARMYTRIX delivers more drama, more flexibility, and more control—without sacrificing comfort or factory refinement.

Fitment:

• Model: BMW 420i / 430i

• Chassis: F32 Coupé / F33 Convertible

• Years: 2016–2019

• Engine: B48B20 2.0L Turbocharged Inline-4

• Drive Type: RWD & AWD

• Drive Orientation: Left-Hand Drive & Right-Hand Drive

• VIN Verification: Strongly recommended to confirm B48B20 engine compatibility

Key Features:

• Wireless Valvetronic Control: Take command of your exhaust valves with the ARMYTRIX OBDII Control Module, compatible with the ARMYTRIX mobile app and included remote control

• Pipework: Free-flowing 3.0” stainless steel piping, expertly TIG-welded for precision, performance, and long-term durability

• Exhaust Tips: Dual 3.5” tips for a sporty, aggressive rear profile

  Compatible with 340i/440i rear diffuser for M-Sport models (aftermarket upgrade required)

• CEL-Prevention Technology: Built-in fault code clearing mechanism minimizes the risk of check engine lights caused by OPF or high-flow modifications

• Plug-and-Play Installation: The pre-configured OBDII module slashes install time by up to 30% compared to traditional wired systems

• Direct Bolt-On Fitment: Designed specifically for the F32/F33 chassis—no cutting, no welding, no guesswork

Valvetronic Sound Modes:

Effortlessly adjust your exhaust tone to match your driving style:

• Valves Closed: Smooth and refined—perfect for daily use or early-morning starts

• Valves Open: Aggressive, raw sound with elevated volume and character for spirited driving

• Adaptive Mode: Real-time responsiveness—valves adjust automatically based on throttle input

Included in the Kit:

• Cat-Back Valvetronic Exhaust System

• Dual 3.5” Exhaust Tips

• ARMYTRIX OBDII Wireless Valve Control Module

• Wireless Remote Control

• Complete mounting hardware & installation guide

Please Note:

• Not compatible with B46 engine variants

• Armytrix OBDII Control Module is required for full valvetronic functionality

• 340i/440i diffuser required for proper tip fitment on M-Sport rear bumpers

Experience the Sound of Control.

The ARMYTRIX Valvetronic Exhaust System for the BMW 420i/430i isn’t just an upgrade—it’s a transformation. Elevate your driving experience with uncompromised performance, superior sound, and intelligent control that responds to your every command.