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CSP2026

APR CBK0037 - Catback Exhaust System - RS4 / RS5 (B9)

APR  |  SKU: APR-CBK0037
Sale price $1,55995 Regular price $2,92495

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PLEASE NOTE: Pictures may be representative of style, rather than the actual product. Read the description for more details.

Description

APR CBK0037 - Catback Exhaust System - RS4 / RS5 (B9)

APR Catback Exhaust System - RS4 / RS5 (B9)

Fits Audi RS4 18-25, RS5 18-25

Designed for enthusiasts seeking the perfect balance of power, sound, style, and quality, the APR Catback Exhaust System for the Audi B9 RS4 and RS5 is a testament to engineering excellence. With its performance-driven design and durable construction, this system not only transforms your driving experience but also ensures years of reliable performance.

  • Complete catalyst-back system including downpipes, extending from the factory catalyst back.
  • Performance gains of 9 HP and 15 FT-LBS of torque delivered to all four wheels.
  • Premium T304 stainless steel construction with TIG welding for strength and durability.
  • Optimized flow through dual 2.75” downpipes, 3.5” midpipe, and quad 2.5” exits.
  • Mandrel-bent brushed piping paired with electropolished cast splitters for a refined finish.
  • Precision brackets and slip clamps ensure accurate alignment and hassle-free installation.
  • Includes an upgraded tunnel brace to accommodate the larger piping.
  • Integrated Helmholtz resonator minimizes drone and enhances sound quality.
  • Valve-controlled rear mufflers dynamically adjust sound based on driving style.
  • Dual 7.25”x5” RS-style diamond black oval tips with APR logo.
  • Smooth transitions and straight-through components maximize performance by reducing restrictions.
  • Strikes the perfect balance of power, sound, style, and quality for enthusiasts.
  • Fully emissions compliant for worry-free operation.
Brackets: Precise
Brand: APR
Category: Exhaust
Clamping Type: Slip Clamp
Clamps Included: Yes
Emission Code: 5
Exhaust Tip Color: Black
Exhaust Tip Diameter: 7.25x5
Exhaust Tip Quantity: 2
Finish: Brushed
Grade Type: Performance
Hangers Included: Yes
Main Piping Diameter: 2.75
Main Piping Diameter: 3.00
Main Piping Diameter: 3.50
Material: T304 Stainless Steel
Muffler Finish: Brushed
Muffler Quantity: 2
Muffler Type: Sound Absorption
Muffler Type: Helmholtz
Pipe Bend Type: Mandrel
Pipe Material: T304 Stainless Steel
Product Type: Exhausts (Catback Systems)
Sub Category: Exhaust and Tail Pipes
System Type: Catback
Tail Pipe Outlet Outside Diameter: 2.5
Tip Style: RS-Style Oval
Tube Connection: Butt Joint
Valve Included: Yes
Valve Type: OEM
Warning: California Proposition 65
Welding: TIG

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