Dinan Valved Axle-Back Exhaust System - MINI Countryman

The Dinan Valved Axle-Back Exhaust System is a purpose-engineered performance upgrade developed specifically for the MINI Countryman platform — one of the most underserved segments of the MINI aftermarket. Engineered by Dinan, the recognized leader in European performance tuning, this direct bolt-on system delivers verified power gains, a distinctive sporty exhaust character, and premium construction quality that sets it apart from both the factory system and aftermarket alternatives.

Electronically Controlled Valve Technology:

The defining feature of this exhaust lineup is its electronically controlled exhaust valve, operated via an included key fob remote. Drivers can close the valve for a refined, subdued driving experience — or open it for full, unrestricted exhaust flow — all from the cabin at the press of a button. Even with the valve fully open, the system is specifically engineered to minimize low-RPM drone, preserving everyday cabin comfort without sacrificing on-demand performance character.

Performance-Engineered Flow and Verified Power Gains:

Enlarged tubing over the factory diameter feeds into a Dinan-designed muffler utilizing absorption technology to reduce backpressure and improve exhaust flow throughout the entire system. The result is a verified increase of +5 HP and +4 lb-ft of torque, paired with the signature MINI exhaust pops that enthusiasts demand from a proper performance system.

Premium T304 Stainless Steel Construction:

Every system in this lineup is fabricated entirely from T304 stainless steel and TIG welded for lasting structural integrity. The exterior is brush-finished from the factory for a clean, premium appearance right out of the box. Dual double-walled, clamp-on exhaust tips are laser-engraved with the Dinan logo and feature the brand's signature straight-cut tip design — a refined, distinctive look that fills the factory cutouts with an aggressive yet elegant presence. Tip finish options vary by variant; select the correct child item for your preferred style.

Key Features:

• Electronically controlled exhaust valve with included key fob remote for on-demand sound management
• Enlarged tubing diameter over stock for reduced backpressure and improved exhaust flow
• Verified power gains: +5 HP and +4 lb-ft of torque
• Engineered to minimize low-RPM drone even with valve fully open
• Full T304 stainless steel construction, TIG welded and brush-finished
• Dual double-walled, clamp-on exhaust tips with laser-engraved Dinan logo and signature straight-cut design
• Direct bolt-on installation using factory mounting locations
• Legal for use on emissions-controlled vehicles
• Multiple drivetrain and tip finish configurations available — select the correct variant for your application

Backed by Dinan's deep expertise in European performance engineering, this axle-back exhaust system gives MINI Countryman owners a rare combination of everyday refinement and on-demand performance — fully in their control. Select the correct variant below for your specific drivetrain configuration and preferred tip finish.