Next Level Performance
July 12, 2026 • 11 min read
The BMW M5 F90 exhaust question almost always ends at one name: Akrapovic. The Akrapovic Evolution Line is a full titanium cat-back system built for the 2018–2025 M5, and it is the single most-requested upgrade we fit to F90s in our Tampa, FL shop. It turns the S63 4.4L twin-turbo V8's polite factory hum into a hollow, race-derived roar — while shedding weight the OEM stainless system never could. This review breaks down exactly what the $9,590.08 Evolution Line delivers, how it stacks up against the valve-controlled AWE Tuning SwitchPath, and which supporting mods actually add power to a 600–617 hp M5.
Our Verdict
The Akrapovic Evolution Line is the definitive titanium cat-back for the F90 M5 — race-bred sound and serious weight savings, with zero tuning required.
If you want the loudest, lightest, most exotic-sounding exhaust for your 2018–2025 BMW M5 and budget is not the deciding factor, the Akrapovic Evolution Line ($9,590.08) is the one to buy. Want valve-controlled volume on a tighter budget? The AWE Tuning SwitchPath ($3,545) is the smart alternative.
Shop Our Top Pick →What Is the Akrapovic Evolution Line for the F90 M5?
The Akrapovic Evolution Line is a complete titanium cat-back exhaust system designed for the 2018–2027 BMW M5 (F90) and its S63 4.4L twin-turbo V8. Unlike a Slip-On Line — which swaps only the rear mufflers — the Evolution Line replaces the entire system behind the catalytic converters, including the connecting pipes and mufflers, in Akrapovic's signature aerospace-grade titanium. That full replacement is what unlocks both the deepest sound and the biggest weight savings.
Akrapovic is a Slovenian manufacturer with deep motorsport credibility: the company supplies titanium exhaust systems across MotoGP, World Superbike, and top-tier GT racing, and its road systems are hand-welded from the same materials. That pedigree is why the Evolution Line commands a premium over stainless-steel competitors — you are paying for genuine titanium fabrication, not a coated tube.
Key Specifications — Akrapovic Evolution Line (F90 M5)
Sound, Weight, and Power: What the Titanium System Delivers
Sound
The Evolution Line transforms the F90 M5's voice. Where the factory exhaust is deliberately muted, the Akrapovic produces a deep, hollow, motorsport-derived tone with a hard-edged top end and crackle on overrun. Because it retains the M5's factory sound-control valves, it can still quiet down in Comfort mode — but in Sport Plus, it is unmistakably a titanium race exhaust. This is the single biggest reason owners choose it over a quieter stainless system.
The Evolution Line replaces the entire cat-back in aerospace-grade titanium.
Weight
Weight is where titanium earns its price. Akrapovic cites approximately 23 lb (about 10 kg) of weight savings versus the stock BMW exhaust, because its proprietary titanium is roughly 40% lighter than the stainless steel BMW uses for the OEM system. On a roughly 4,300-lb super sedan like the F90 M5, dropping that mass from the very rear of the chassis sharpens throttle response and rear-end balance — and the titanium is just as durable against heat and corrosion.
Power
Here is the honest truth most sellers skip: a cat-back alone adds only about 5–15 wheel horsepower to the F90 M5. Akrapovic's own figures cite roughly +10 hp and +12 lb-ft, and AWE claims up to +22 whp in the peak region for its SwitchPath cat-back — useful, but not transformative. The S63's restrictions live upstream at the turbochargers and primary catalytic converters, so the cat-back's job is to cut backpressure and free up the sound, not to rewrite the dyno sheet. The real power gains on an M5 come from downpipes plus an ECU tune, which routinely push these cars past 700–800 wheel horsepower. The Evolution Line is the ideal acoustic and weight foundation for that build.
Akrapovic vs AWE Tuning SwitchPath: F90 M5 Exhaust Comparison
The Akrapovic Evolution Line's closest rival is the AWE Tuning SwitchPath cat-back. The core difference is simple: Akrapovic is fixed titanium with the loudest, most exotic tone, while AWE's SwitchPath uses valves you can open and close from a remote or app to swing from track-loud to daily-quiet. The table below compares both against the AWE Track Edition axle-back and the factory M5 system so you can match the exhaust to how you drive.
| Kit | Material | Valve Control | Sound | Price |
|---|---|---|---|---|
| Akrapovic Evolution LineTop Pick | Titanium | Fixed (OEM valves) | Deepest / loudest | $9,590.08 |
| AWE Tuning SwitchPath | 304 Stainless | Valved (app/remote) | Loud to quiet | $3,545.00 |
| AWE Track Edition Axle-Back | 304 Stainless | Non-valved (fixed) | Loud (always on) | $1,485.00 |
| Factory M5 Exhaust | Stainless steel | Valved (OEM) | Muted / refined | Included |
For buyers who split time between quiet commutes and loud weekends, the SwitchPath's valve control is genuinely useful and it costs roughly a third of the Akrapovic. If you want the last word in sound and the lightest system money can buy, the titanium Evolution Line still wins. Want loud all the time for less? The AWE Track Edition axle-back and non-resonated mid-pipes are a fixed, no-compromise route.
Complete the Build: Supporting Mods for the F90 M5
An exhaust is the headline, but the F90 M5 responds beautifully to a handful of proven supporting upgrades. These are the parts we most often pair with the Evolution Line to build a complete, track-capable M5.
The aFe Momentum Black Series pairs sealed carbon fiber housings with Pro 5R filters to feed the twin-turbo S63 more air, improving throttle response and turbo spool alongside a more aggressive induction note under load.
The S63 makes big heat, and sustained track or spirited driving can push oil temps high. The CSF high-performance oil cooler adds cooling capacity to keep the F90 M5's twin-turbo V8 in its happy zone — cheap insurance for a car making 600+ hp.
Added oil-cooling capacity keeps the S63 in its temperature window on track.
EBC RP-X pads add track bite for the M5's big rotors.
For stopping power, EBC Racing RP-X front pads ($450.81) add serious high-temperature bite for track days without destroying your rotors. To dial in the stance, Eibach Pro-Kit lowering springs ($395) drop the M5 roughly 1.0 in up front and 0.8 in at the rear for a tighter look and lower center of gravity while keeping the factory adaptive dampers, and H&R 11mm wheel-spacer kits ($255.28) push the wheels flush to the arches for a more purposeful footprint.
Eibach Pro-Kit springs lower the M5 while retaining the adaptive dampers.
H&R 11mm spacers push the wheels flush to the fenders.
To finish the rear end, Akrapovic's matte carbon fiber diffuser frames the titanium tips and ties the exhaust into a cohesive, factory-plus look.
Akrapovic Evolution Line: Pros and Cons
What We Like
- + Full titanium construction — loudest, most exotic F90 M5 sound
- + Significant weight savings versus the heavy OEM stainless system
- + Bolt-on install with no tune and no check-engine lights
- + Retains factory sound-control valves for Comfort-mode manners
- + Fits every 2018–2025 M5: base, Competition, LCI, and CS
Things to Consider
- – Premium price at $9,590.08 — the most expensive cat-back option
- – Tips are sold separately for this SKU (S-BM/T/2H)
- – Fixed volume — no on-demand quiet mode like a valved AWE SwitchPath
Across the F90 M5 owner community, the aggregated feedback on the Evolution Line is consistent: buyers praise the titanium weight loss, the deeper and more exotic tone, and the jewelry-grade fit and finish, while the most common critiques are the high price (especially with tips sold separately) and the modest dyno gains for the money. If your priority is sound and weight rather than raw horsepower, that trade is exactly what this system is built to deliver.
Installation, Fitment, and Warranty
The Evolution Line is a direct bolt-on cat-back: it mounts to the factory hangers behind the catalytic converters with no cutting and no welding, and a competent shop completes the swap in roughly 1.5–3 hours. Because it keeps the OEM catalytic converters, oxygen sensors, and electronic valves, there is no tune required and no fault codes. This SKU (S-BM/T/2H) requires Akrapovic tailpipe tips, sold separately, so you can choose your finish.
Fitment covers the entire F90 generation — 2018–2020 pre-LCI, 2021+ LCI facelift, the M5 Competition, and the 2022 M5 CS — because they all share the S63 4.4L twin-turbo V8. (Akrapovic excludes cars fitted with a gasoline particulate filter, or OPF; U.S.-market F90s are generally non-OPF.) Under the Magnuson-Moss Warranty Act, a bolt-on cat-back like this does not automatically void your BMW factory warranty. At our Tampa, FL shop we install dozens of these systems a year, and the Evolution Line is consistently the exhaust our M5 owners are happiest with.
Frequently Asked Questions
How much horsepower does an exhaust add to a BMW M5 F90?
A cat-back exhaust alone adds only about 5–15 wheel horsepower to the F90 M5, because the twin-turbo S63 engine is restricted mainly upstream at the turbos and catalytic converters. The Akrapovic Evolution Line's real value is weight savings, sound, and reduced backpressure that lets a future downpipe-and-tune package breathe. The big power jumps — often 700–800+ wheel horsepower — come from aftermarket downpipes plus an ECU tune, not the cat-back by itself.
Does the Akrapovic Evolution Line require a tune on the F90 M5?
No. The Akrapovic Evolution Line is a bolt-on cat-back that does not require an ECU tune. It reuses the factory sound-control valves and the OEM electronic flap system, so there are no fault codes or check-engine lights. You can install it on a completely stock 600–617 hp M5 and drive away the same day.
How much weight does the Akrapovic titanium exhaust save?
Akrapovic cites approximately 23 lb (about 10 kg) of weight savings versus the factory stainless-steel system, because its proprietary titanium is roughly 40% lighter than stainless steel. On a heavy super sedan like the roughly 4,300-lb F90 M5, that trims meaningful mass from the rear of the car and sharpens throttle response.
Does the Akrapovic exhaust fit the F90 M5 Competition and the 2021+ LCI?
Yes. This Akrapovic Evolution Line cat-back fits every 2018–2027 F90 M5 — the base M5, the M5 Competition, the 2021+ LCI facelift, and the 2022 M5 CS. All of these share the same S63 4.4L twin-turbo V8 and exhaust layout. Note that the required tailpipe/tips are sold separately for this SKU.
Akrapovic Evolution Line vs AWE SwitchPath: which is better for the M5?
The Akrapovic Evolution Line is louder, lighter, and more exotic-sounding thanks to full titanium construction, while the AWE Tuning SwitchPath ($3,545) offers valve-controlled volume you can toggle from loud to civilized on demand. Choose Akrapovic for the ultimate motorsport sound and weight savings; choose AWE SwitchPath if you want adjustable volume and a lower price for daily driving.
Will an aftermarket cat-back void my BMW M5 warranty?
Under the U.S. Magnuson-Moss Warranty Act, installing a cat-back exhaust does not automatically void your BMW factory warranty. A dealer can only deny a specific claim if it proves the part directly caused the failure. Because the Akrapovic Evolution Line is a bolt-on cat-back that keeps the OEM catalytic converters and sensors, it is one of the lowest-risk performance upgrades for a warrantied M5.
Does the Akrapovic Evolution Line drone on the highway?
The Akrapovic Evolution Line is a loud, race-derived system, but it uses the F90 M5's factory sound-control flaps to tame volume in Comfort mode, which keeps cruising drone manageable for a titanium exhaust. Owners who prioritize an always-quiet commute often prefer the valve-controlled AWE SwitchPath, which can fully close for a near-stock cabin at highway speed.
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