Remus 504013 1500 Cat-Back Exhaust System with Integrated Valve

The Remus 504013 1500 is a premium stainless steel cat-back exhaust system engineered for the Mercedes-Benz A 45 AMG and CLA 45 AMG. Designed to connect downstream of the OEM catalytic converter, this centered cat-back system retains the vehicle's stock tailpipes while delivering a significant upgrade in both sound and performance. No ECU tune is required.

The system features an electronically controlled integrated valve activated by the vehicle's own onboard electronics and actuators — no aftermarket controller needed for standard operation. An optional REMUS Sound Controller (STE 0002BT) is also available for additional sound customization.

Key Features:

• 100% stainless steel construction with shot-blasted surface finish
• Centered cat-back design with integrated electronic valve system
• Non-resonated front section for aggressive exhaust note
• Reduced back pressure with optimized flow dynamics for increased power and torque
• Lightweight construction — lighter than the OEM exhaust system
• Retains OEM tailpipe aesthetics integrated in the bumper
• EC/EEC homologation included — street legal
• 24-month manufacturer warranty
• Handmade in Austria

Important: This cat-back system (504013 1500) requires separate outlet/connection tubes for proper installation. Use part number 504013 1600 for the A 45 AMG (W176) or 504513 1600 for the CLA 45 AMG (C117). These connection tubes must be ordered separately.

Remus is a globally recognized performance exhaust manufacturer known for rigorous testing and premium craftsmanship. Each system is engineered to achieve the ideal balance of performance gains and the signature sonorous Remus exhaust sound.