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APR CBK0051 RSQ8 Cat-Back Kit

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APR CBK0051 RSQ8 Cat-Back Kit
APR

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#426CBK0051

APR CBK0051 RSQ8 Cat-Back Kit

  • Quad pipes exit the system into the exhaust tips and consist of dual 3" valved exhaust paths and dual 2.5" non-valued paths. This allows for multiple sound profiles depending on driving style. The RS Q8 is a monster and sounds absolutely menacing when under wide pen throttle. When the vales open, the fire-breathing twin-turbo V8 gets rowdy. Expect a deep and throaty roar that will send shivers up and done your spine as you're pinned to the back of your seat. And yet when you contain the beat and drive like a normal human being the ECU controlled valves close, reducing sound volume and drone. If you fight the urge to drive like a maniac, the exhaust will reward you with a pleasant low rumble that lets you know its there without upsetting the neighborhood. This is the ultimate exhaust system for the Audi RS Q8!
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$3,643.95

/kit

Factory Shipped

$4,049.95

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Product Summary

Natural, Stainless Steel

  • Quad pipes exit the system into the exhaust tips and consist of dual 3" valved exhaust paths and dual 2.5" non-valued paths. This allows for multiple sound profiles depending on driving style. The RS Q8 is a monster and sounds absolutely menacing when under wide pen throttle. When the vales open, the fire-breathing twin-turbo V8 gets rowdy. Expect a deep and throaty roar that will send shivers up and done your spine as you're pinned to the back of your seat. And yet when you contain the beat and drive like a normal human being the ECU controlled valves close, reducing sound volume and drone. If you fight the urge to drive like a maniac, the exhaust will reward you with a pleasant low rumble that lets you know its there without upsetting the neighborhood. This is the ultimate exhaust system for the Audi RS Q8!
  • T304 stainless-steel construction
  • Full system from the cats back
  • Argon back-purged TIG welding throughout
  • Dual 3” mandrel-bent brushed tubing with dual 3” valved and dual 2.5” non-valved outlets

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Key Specs

MFG. Part #CBK0051
BrandAPR
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APR CBK0051 Details


Our premium catback exhaust system is a full length T304 stainless steel exhaust system that's sure to turn heads! Cast flanges make a smooth transition from the factory turbo catalyst pipes into our downpipes and upgrade the size of the piping to 3". High quality brushed T304 stainless steel adorns the system with TIG welding throughout. The piping is as straight and smooth as possible, with mandrel bends and minimal mufflers for maximum flow.
  • Quad pipes exit the system into the exhaust tips and consist of dual 3" valved exhaust paths and dual 2.5" non-valued paths. This allows for multiple sound profiles depending on driving style. The RS Q8 is a monster and sounds absolutely menacing when under wide pen throttle. When the vales open, the fire-breathing twin-turbo V8 gets rowdy. Expect a deep and throaty roar that will send shivers up and done your spine as you're pinned to the back of your seat. And yet when you contain the beat and drive like a normal human being the ECU controlled valves close, reducing sound volume and drone. If you fight the urge to drive like a maniac, the exhaust will reward you with a pleasant low rumble that lets you know its there without upsetting the neighborhood. This is the ultimate exhaust system for the Audi RS Q8!
  • T304 stainless-steel construction
  • Full system from the cats back
  • Argon back-purged TIG welding throughout
  • Dual 3” mandrel-bent brushed tubing with dual 3” valved and dual 2.5” non-valved outlets
  • Ultra smooth Cast downpipe inlets
  • Dual exhaust valves
  • Brushed-finished sound absorption mufflers
  • Rugged and precise mounting brackets
  • OEM style no-compromise flex sections that won’t collapse, billow, and fail
  • OEM style slip clamps
  • Plug and play design
  • Larger diameter piping compared to stock
  • In-house design with world-class manufacturing and quality control
  • Easy to install

    • Rebates

    Holley October Promo 10% Off Select Parts Sale

    Holley October Promo 10% Off Select Parts SaleHolleyOctoberPromo10%OffSelectPartsSale

    Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.

    APR CBK0051 Specifications

    KEY SPECS
    MFG. Part #CBK0051
    BrandAPR
    GENERAL
    Exhaust System FinishNatural
    Sold in QuantityEach
    GTIN Code00810009935179
    Material TypeStainless Steel

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