Does the APR Catback Exhaust for 4M RS Q8 keep the factory valves?

Yes. The APR Catback Exhaust for 4M RS Q8 runs dual exhaust valves under ECU control, so the V8 still changes character with driving style. Under hard throttle the valves open for a deep, throaty roar, and at a relaxed pace they close to reduce volume and drone for a quieter drive.

How loud is the APR RS Q8 exhaust compared with stock?

With the valves open, APR describes a deep, menacing roar from the twin-turbo V8 at wide-open throttle. When the vehicle is driven gently, the valves close and the system settles to a pleasant low rumble, so the RS Q8 remains comfortable for daily driving and long trips.

Does the APR RS Q8 system replace the whole exhaust?

It replaces the full length of the exhaust behind the factory hardware at the front, from cast inlet flanges through 3 inch piping, mufflers and valves to the quad outlets. The factory tips are kept and the system connects with OEM-style slip clamps for a plug and play installation.

What is the APR RS Q8 exhaust made from?

APR builds the system from brushed T304 stainless steel with mandrel bends and argon back-purged TIG welding throughout. Cast inlet flanges, OEM-style flex sections that resist collapsing or billowing, and rugged brackets complete it, so it stands up to the heat and weight of a high-output V8 SUV.

Are new exhaust tips included?

No. The quad outlets of the APR system feed the factory RS Q8 tips, which stay on the vehicle. The rear view keeps its Audi Sport look, while the piping behind it grows to 3 inches with dual valved and dual non-valved paths for more flow and sound.

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Description

APR Catback Exhaust for 4M Audi RS Q8

APR’s Catback Exhaust for 4M Audi RS Q8 is a full-length system for the twin-turbo 4.0 liter V8, running in brushed T304 stainless steel from cast inlet flanges at the front all the way to the factory tips. The piping steps up to 3 inches with mandrel bends and minimal muffling for flow, then splits into dual 3 inch valved paths and dual 2.5 inch non-valved paths. Open the throttle and the valves let the V8 roar; drive gently and they close to a low rumble that will not upset the neighbors. For an RS Q8 owner who wants the sound to match the performance of the vehicle, this is APR’s answer.

Design and Performance

The ECU keeps control of both exhaust valves, so the sound profile changes with driving style rather than being fixed loud or quiet. OEM-style flex sections are built not to collapse, billow or fail under the heat of the V8, and the TIG welds are argon back-purged for clean internal seams. Brushed sound absorption mufflers trim drone while leaving the flow path as straight and smooth as APR could make it.

Features

Full-length brushed T304 stainless steel system with argon-back-purged TIG welds
Cast inlet flanges for a smooth transition from the factory hardware
Dual 3 inch mandrel-bent tubing, larger than stock
Dual 3 inch valved and dual 2.5 inch non-valved outlets
Dual ECU-controlled exhaust valves
Brushed sound absorption mufflers
OEM-style flex sections that resist collapse and failure
OEM-style slip clamps and a plug-and-play design

Applications

Audi RS Q8: 4M | 2020-2024 | 4.0L V8 TFSI twin-turbo

Notes

The Catback Exhaust for 4M RS Q8 exits into the factory exhaust tips, which are retained; no tips are included
The factory electronic valve control is retained

Frequently Asked Questions

Does the APR Catback Exhaust for 4M RS Q8 keep the factory valves? Yes. The APR Catback Exhaust for 4M RS Q8 runs dual exhaust valves under ECU control, so the V8 still changes character with driving style. Under hard throttle the valves open for a deep, throaty roar, and at a relaxed pace they close to reduce volume and drone for a quieter drive.
How loud is the APR RS Q8 exhaust compared with stock? With the valves open, APR describes a deep, menacing roar from the twin-turbo V8 at wide-open throttle. When the vehicle is driven gently, the valves close and the system settles to a pleasant low rumble, so the RS Q8 remains comfortable for daily driving and long trips.
Does the APR RS Q8 system replace the whole exhaust? It replaces the full length of the exhaust behind the factory hardware at the front, from cast inlet flanges through 3 inch piping, mufflers and valves to the quad outlets. The factory tips are kept and the system connects with OEM-style slip clamps for a plug and play installation.
What is the APR RS Q8 exhaust made from? APR builds the system from brushed T304 stainless steel with mandrel bends and argon back-purged TIG welding throughout. Cast inlet flanges, OEM-style flex sections that resist collapsing or billowing, and rugged brackets complete it, so it stands up to the heat and weight of a high-output V8 SUV.
Are new exhaust tips included? No. The quad outlets of the APR system feed the factory RS Q8 tips, which stay on the vehicle. The rear view keeps its Audi Sport look, while the piping behind it grows to 3 inches with dual valved and dual non-valved paths for more flow and sound.

About APR Tuning

APR was founded in 1997 and develops performance hardware, software and calibrations for Volkswagen, Audi, SEAT, Skoda and Porsche vehicles, from intakes, intercoolers and turbocharger systems to exhausts, brakes and suspension. It designs and manufactures from an 80,000 square foot headquarters in Opelika, Alabama, which it shares with Dinan as part of Holley Performance Brands, and delivers its software worldwide through a 24-hour automated system run from the same site.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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APR Catback Exhaust for 4M Audi RS Q8 [CBK0051]

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APR Catback Exhaust for 4M Audi RS Q8

Design and Performance

Features

Applications

Notes

Frequently Asked Questions

About APR Tuning

Reviews