Porsche 982 Cayman / Boxster / Spyder (CB2) ASR Exhaust Flap Control

ASR CB2 exhaust valve control – precise control via the original exhaust button

With the ASR CB2 exhaust flap control system , you retain full control over your exhaust flaps – directly via the original exhaust button of your Porsche 718. Designed for maximum functionality and uncompromising quality, the system ensures an authentic sound experience and precise control of the flap system – all without any modification to the vehicle's electronics.

Compatible with:

• 718 Cayman GTS 2.5 (982)

• 718 Cayman GTS 4.0 (982)

• 718 Cayman GT4 (982)

• 718 Cayman GT4 RS (982)

• 718 Boxster GTS 2.5 (982)

• 718 Boxster GTS 4.0 (982)

• 718 Spyder (982)

Features at a glance

Exhaust button:

• Active: Flaps permanently open

• Inactive: Flaps open from 4000 rpm or 80% accelerator pedal position

Series / Workshop mode:
Can be activated or deactivated via key combination – ideal for maintenance or test benches.

Exhaust button memory game:
Saves the last setting and automatically restores it when the vehicle starts.
(Available on the Spyder, GT4 and GT4 RS)

Simple plug-and-play installation

Installation is quick and leaves no residue via vehicle-specific connectors – completely without coding or intervention in the CAN bus.

• Reversible without leaving any trace

• No error messages in memory

• No additional tools required

Technical Highlights

• High-quality stainless steel front with an elegant look

• Long range and stable signal transmission

• Robust design for continuous use

• Includes remote control

This flap control was specially developed for electric exhaust flap systems and guarantees safe, reliable operation – Made in Germany.

Notes

• Not street legal (for racing use only)

• The flaps should not be completely closed at full load.

• Installation at your own risk

• No liability for improper use