The ARM 4.0T Midpipes unlock the aggressive and refined exhaust tone that your Audi 4.0T engine is capable of producing. Designed to replace the factory resonated midpipe section, these midpipes utilize a straight-through design that allows the true character of the 4.0T engine to be heard.

Engineered for seamless integration, the ARM 4.0T Midpipes are fully compatible with both OEM downpipes and catback exhaust systems, as well as most aftermarket upgrades designed to connect to factory midpipes. As a direct bolt-on replacement, installation requires no cutting or welding, ensuring a straightforward and hassle-free upgrade.

Additionally, the ARM 4.0T Midpipes do not affect vehicle emissions and will not trigger a check engine light (CEL).

Also Purchase Downpipe and Complete you exhaust mod

Highlights

• Enhanced exhaust sound for the Audi 4.0T engine
• No impact on emissions
• Constructed from 304 stainless steel
• TIG welded for strength and durability
• No cutting or trimming required
• Approximate 45-minute installation

Construction

The ARM Motorsports 4.0T Midpipes are manufactured from high-quality 304 stainless steel, ensuring long-lasting durability and resistance to corrosion. The tubing measures 60mm outer diameter, allowing perfect alignment with both factory and aftermarket downpipes or catback exhaust systems designed to connect to OEM midpipes.

To maintain reliability under demanding driving conditions, the midpipes feature an OEM-style flex section. This design helps reduce torsional stress on the downpipes and turbochargers during hard acceleration, cornering, and braking.

For ease of installation and compatibility, the midpipes retain OEM-style connection points:

• Downpipe Connection: Utilizes an OEM-style 3-bolt flange, allowing direct fitment with factory downpipes or aftermarket downpipes that use the same flange design.

• Catback Connection: Designed to connect using the factory sleeve clamp, ensuring compatibility with the stock exhaust system or aftermarket systems designed to attach to OEM midpipes.

In the Box

• ARM 4.0T Midpipes
• Downpipe connection mounting hardware

Fitment

• Audi A8 (D4) — 4.0T
• Audi A8L (D4) — 4.0T
• Audi S8 (D4) — 4.0T
• Audi S6 (C7) — 4.0T
• Audi S7 (C7) — 4.0T
• Audi RS7 (C7) — 4.0T
• Audi S6 (C7.5) — 4.0T
• Audi S7 (C7.5) — 4.0T
• Audi RS7 (C7.5) — 4.0T
• Audi A8 (D5) — 4.0T
• Audi A8L (D5) — 4.0T
• Audi S8 (D5) — 4.0T

ARM Motorsports Lifetime Warranty

Every ARM Motorsports product is backed by a lifetime warranty, automatically activated at the time of purchase. This warranty protects against defects in craftsmanship or fitment and entitles the customer to a replacement unit if an issue occurs.