Akrapovic S-AU/TI/28H Evolution Line Titanium Cat-Back Exhaust for 2025+ Audi RS3 Sedan

This product is constructed with high-grade titanium tubes and a muffler, which are attached to the car’s stock downpipes with a high-quality stainless-steel link pipe and finished with handcrafted carbon-fiber tailpipes and a titanium inner sleeve. Weighing in at 36.2% lighter than the standard setup, this system provides power gains of 7.5 kW (10.2 hp) at 5,450 rpm and torque increases of 8.8 Nm at 3,900 rpm (when tested on The Akrapovic dyno against an Audi RS 3 with a standard stock exhaust). The in-house foundry casts the housings for the two exhaust valves, one for each side of the muffler to tailor the sound. The distinctive tones of the five-cylinder engine serve up a relaxed and pleasing purr in comfort mode, with a tasteful reminder of the car’s potential when cruising in dynamic mode, and then the full sound experience is delivered while accelerating and reaching for the limit. A high-gloss handmade rear carbon-fiber diffuser is available as an optional extra, as is the optional Akrapovic Sound Kit to offer full control over the exhaust tones. If The Akrapovic Sound Kit is fitted, the Evolution Line (Titanium) ECE type-approval certificate is not valid. The exhaust system is ECE type approved for cars equipped with an Otto/gasoline particulate filter. Akrapovic 2025+ Audi RS3 Sedan (8Y FL) Evolution Line Catback - Titanium: Req. P-HF1636 control kit

The Akrapovic Evolution Line Cat-Back Exhaust is engineered for the 2025 and newer Audi RS3 Sedan (8Y facelift) with a five-cylinder engine. Part number S-AU/TI/28H combines lightweight titanium construction with a stainless-steel link pipe that connects to the factory downpipes. Handcrafted carbon-fiber tailpipes and titanium inner sleeves complete the system with a premium appearance and motorsport-inspired finish.

Compared with the standard exhaust system, this Akrapovic setup is 36.2% lighter and produces measured gains of up to 10.2 horsepower at 5,450 rpm and 6.5 lb-ft of torque at 3,900 rpm. Integrated exhaust valves, cast in-house for precise fitment, help tailor the sound across the Audi drive modes. Comfort mode delivers a refined, relaxed tone, while Dynamic mode provides a deeper and more expressive exhaust note that intensifies under acceleration.

The system is ECE type approved for vehicles equipped with an Otto or gasoline particulate filter. For expanded sound control, the optional Akrapovic Sound Kit requires control kit P-HF1636 or P-HF1431; installing the Sound Kit invalidates the ECE type-approval certificate. An optional high-gloss handcrafted carbon-fiber rear diffuser is also available separately. This product fits the 2025 Audi RS3 Sedan and is intended for enthusiasts seeking reduced weight, improved performance, premium materials, and adjustable exhaust character.

Key Product Specifications and Technical Data

• Brand: Akrapovic
• Part Number: S-AU/TI/28H
• Product Type: Evolution Line Cat-Back Exhaust
• Material: Titanium, stainless steel, and carbon fiber
• Performance Gain: Up to 10.2 horsepower and 6.5 lb-ft of torque
• Weight Reduction: 36.2% lighter than the standard exhaust system
• Valve Configuration: Two integrated exhaust valves
• Approval: ECE type approved with an Otto or gasoline particulate filter

What's Included

• Akrapovic Evolution Line titanium cat-back exhaust system
• Stainless-steel link pipe
• Handcrafted carbon-fiber tailpipes with titanium inner sleeves
• Required installation hardware

Fitment: Fits the 2025 Audi RS3 Sedan. Verify vehicle configuration and required control kit before ordering.

Features:

• Lightweight Titanium Construction: Uses high-grade titanium tubes and a muffler to reduce system weight by 36.2% compared with the standard exhaust.
• Dyno-Tested Performance: Delivers gains of up to 10.2 horsepower at 5,450 rpm and 6.5 lb-ft of torque at 3,900 rpm when tested against a stock Audi RS3.
• Valve-Controlled Sound: Two integrated exhaust valves adjust the exhaust character for refined cruising in Comfort mode and a more aggressive tone in Dynamic mode.
• Premium Carbon-Fiber Finish: Includes handcrafted carbon-fiber tailpipes with titanium inner sleeves for a distinctive, high-quality appearance.

Fitments:
2025 Audi RS3 Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1