Akrapovic Audi RS7 Exhaust Review: Evolution Line (C7)

The Akrapovic Audi RS7 exhaust is the definitive titanium upgrade for the C7-generation Sportback, and the Evolution Line is the flagship. Built for the 2014–2017 Audi RS7 (C7) and its 560-hp 4.0 TFSI twin-turbo V8, this full cat-back system trades roughly 18 lbs of factory steel for aerospace-grade titanium, sharpens throttle response, and unlocks the hard-edged V8 voice Audi muted from the factory. At NLP Performance in Tampa, FL, it is one of the most-requested premium exhausts we ship for the RS7. In this review we break down the real dyno figures, weight savings, sound, fitment, and price so you know exactly what your money buys.

What Is the Akrapovic Evolution Line for the RS7 C7?

The Akrapovic Evolution Line is a full titanium cat-back exhaust system engineered specifically for the 2014–2017 Audi RS7 Sportback (C7). "Cat-back" means it replaces everything from the factory catalytic converters rearward, so your emissions hardware stays intact and the system is street-friendly. Akrapovic builds the pipework from lightweight, high-grade titanium, uses cast collectors for durability and flow, and finishes the system with hand-laid carbon-fiber tailpipes. Part number S-AU/TI/4H is the exact fitment for the C7 RS7's 4.0-liter TFSI V8.

Where a stainless aftermarket exhaust simply gets louder, the Evolution Line is a complete acoustic and weight-reduction package. It runs three mufflers – the central unit houses an internal X-piece that blends the two banks of the V8 for a fuller, more resonant tone. Because Akrapovic tunes the system to the RS7's factory valved exhaust and ECU, it installs plug-and-play with no remap required.

How Much Power Does the Akrapovic RS7 Exhaust Add?

On Akrapovic's own dyno, the Evolution Line lifts the C7 RS7 from 558 bhp at 5,850 rpm to 564.9 bhp, and from 556 lb-ft at 2,950 rpm to 563.7 lb-ft – a gain of roughly 7 hp and 8 lb-ft at the crank. That is a modest number on paper, and it should be: a cat-back cannot rival a downpipe-and-tune package for peak output. What it delivers is cleaner exhaust flow behind the factory cats, faster throttle response, and a broader midrange that makes the 560-hp V8 feel more eager on part throttle.

The bigger performance story is weight. The factory RS7 exhaust weighs about 75 lbs; the Akrapovic titanium system comes in at 57.1 lbs. Shedding ~18 lbs of mass at the very rear of the car lowers rotational and overhang weight, which sharpens turn-in and helps the RS7 feel lighter on its feet. For a 4,500-lb super-sedan, unsprung and tail-end weight reduction is a genuine handling upgrade, not just a spec-sheet footnote. Pair the exhaust with a proper tune later and the freer-flowing titanium becomes a real supporting mod.

What Does the RS7 Akrapovic Exhaust Sound Like?

Deep, hard-edged, and unmistakably Akrapovic. At idle and cruising rpm the Evolution Line stays civil enough for daily driving, letting the RS7 keep its grand-tourer manners. Open the throttle and the tuned titanium and X-piece deliver the signature 4.0T V8 bark, with pronounced pops and crackle on overrun as you lift off. Because the system works with the RS7's factory exhaust valves, it is loudest in Dynamic mode and calmer in Comfort – you keep the ability to fly under the radar when you want to.

Compared with the muted factory system, the difference is night and day: the OEM RS7 hushes much of the V8's character to meet European drive-by noise limits, while the Akrapovic lets it breathe. It is more resonant than a typical stainless cat-back and free of the raspy drone that plagues cheaper systems, thanks to the internal X-piece and precision-tuned muffler volumes.

Titanium vs Stainless: Why the Material Matters

Titanium is the reason the Evolution Line weighs ~18 lbs less than the steel factory system while resisting heat and corrosion better than stainless. It carries roughly half the density of stainless steel, so Akrapovic can use full-size pipe diameters for flow without the mass penalty. The alloy also develops the trademark bronze-and-blue heat tint at the tips over time – a visual signature that tells everyone the RS7 wears genuine Akrapovic hardware.

Construction quality is where the price shows. Cast collectors replace crush-bent junctions for smoother flow and long-term durability, welds are TIG-laid and consistent, and the carbon-fiber tailpipes are autoclave-cured rather than glued-on covers. This is motorsport-grade fabrication from the same company that supplies exhaust systems to Formula 1, MotoGP, and factory Audi Sport programs.

Does It Fit, and How Hard Is the Install?

Yes – part S-AU/TI/4H is a direct-fit cat-back for the 2014–2017 Audi RS7 Sportback (C7). It mounts to the factory hangers and mates to the OEM catalytic converters and exhaust-valve wiring, so no cutting or welding is required. Most shops complete the swap in 2–4 hours on a lift. Because it retains the stock valves and needs no ECU flash, there are no fault codes or check-engine lights to chase afterward.

At NLP Performance we recommend professional installation given the value of the hardware and the tight packaging around the RS7's rear diffuser. Torque the clamps evenly and set the carbon tips flush in the diffuser cutouts for that OEM-plus finish. Once installed, the titanium will heat-cycle to its final tint within a few hundred miles.

Complete the C7 RS7 Build: Best Supporting Mods

The Akrapovic exhaust is the centerpiece, but a few genuine C7 RS7 upgrades round out the package – more intake growl, a lower stance, and reduced unsprung weight. Every part below is a verified fit for the 2014–2017 RS7 Sportback and in stock at NLP Performance. Note the RS7 ships with adaptive air suspension from the factory, so confirm your suspension type before choosing between spring and air-ride options.

AWE Tuning S-FLO Carbon Intake V2

KW H.A.S. Height-Adjustable Springs

SHW Lightweight Front Brake Rotors