APR | Rear Catback Exhaust System - SQ5 (B9) - SQ5 / SQ5 Sportback 3.0L 2018-2025

APR – Rear Catback Exhaust B9 SQ5

Description

The APR Rear Catback Exhaust System (CBK0057) is designed for the Audi B9 SQ5 and SQ5 Sportback. Built from brushed T304 stainless steel with full TIG welding, it routes exhaust from dual 2.75 in midpipes to a single 3.5 in midpipe, then exits through dual 3 in downturns via electropolished cast splitters. The integrated sound-absorption muffler, controlled by OEM valves, dynamically adjusts sound based on driving style — aggressive at wide-open throttle, refined during cruising. Smooth transitions and straight-through components maximize performance by reducing restrictions. Alone, this catback delivers +5 AWHP and +6 ft-lbs; combined with the APR Midpipe System, gains reach +10 AWHP and +12 ft-lbs. Simple bolt-on installation. Note: Excludes vehicles equipped with S Sport Package or Air Suspension.

Specifications

• Brand: APR
• Part Number: CBK0057
• Material: Brushed T304 stainless steel
• Pipes: Dual 2.75 in to 3.5 in single, dual 3 in exits
• Splitters: Cast, electropolished
• Muffler: Sound absorption with dual OEM valves
• Welding: Full TIG
• Mounting: Precision brackets + slip clamps
• Gains alone: +5 AWHP / +6 ft-lbs | Combined with APR midpipe: +10 AWHP / +12 ft-lbs
• Installation: Bolt-on (compatible with APR midpipe or factory system)
• Compatibility: Audi B9 SQ5/SQ5 Sportback 3.0L, excl. S Sport Package / Air Suspension (See Application Section)
• Emissions compliant
• Condition: New
• Sold and shipped by GBP Performance

Note:

• Livraison GRATUITE / FREE Delivery