Next Level Performance
August 7, 2026 • 9 min read
Our Verdict
The Akrapovic Slip-On Race Line is the definitive bolt-on exhaust for the 992 Porsche 911 Turbo and Turbo S — a true titanium slip-on that adds 22.5 hp, sheds 9.0 kg, and installs in an afternoon with no tune.
For most owners we recommend the Slip-On Race Line with Black Titanium tips (part akrS-PO/TI/19-TPB). It ships complete with tips, retains the factory exhaust valve control, and needs no ECU flash.
Shop Our Top Pick →Upgrading the exhaust on a 992 Porsche 911 Turbo is the single most satisfying bolt-on you can do — and the Akrapovic Slip-On Race Line is the part that does it right. This titanium system is a genuine slip-on, so it replaces the factory sport muffler in about two to three hours without an ECU tune, without cutting, and without a check-engine light. On Akrapovic’s own dyno it added +16.6 kW (22.5 hp) and +46.8 Nm (34.5 lb-ft) at 3,400 rpm over the stock Porsche sport exhaust, while dropping 9.0 kg (about 19.8 lb) off the back of the car. Below, the team at NLP Performance in Tampa, FL walks you through exactly how to install it on your 2020–2021 911 Turbo or Turbo S (992), which configuration to buy, and what to expect afterward.
What Is the Akrapovic Slip-On Race Line for the 992 911 Turbo?
The Akrapovic Slip-On Race Line is a titanium rear-muffler exhaust system designed for the 2020–2021 Porsche 911 Turbo and Turbo S (992) that bolts onto the factory catalytic converters to add power, deepen the note, and cut weight. Because it is a slip-on rather than a full turbo-back system, it keeps the OEM cats and the factory exhaust flap actuators, so it stays 50-state emissions-friendly and requires no software. The muffler body is hand-built from lightweight titanium in Akrapovic’s in-house foundry, which is where most of the 9.0 kg weight saving comes from.
The performance story is real, not marketing. Tested against the Porsche stock sport exhaust on the 992 Turbo’s 3.7-liter twin-turbo flat-six, the system freed up 22.5 hp and 34.5 lb-ft of torque, with the biggest gains arriving low in the rev range at 3,400 rpm where the Turbo already makes its wall of boost. That means more immediate shove out of corners and on-ramps, not just a peak-number bragging right.
The titanium Slip-On Race Line muffler replaces the factory 992 Turbo sport exhaust.
Key Specifications — Slip-On Race Line (Black Ti Tips)
Does It Fit the 911 Turbo and Turbo S? (992 Fitment)
Yes — one Akrapovic Slip-On Race Line part number fits both the 992 911 Turbo and the Turbo S, in coupe and cabriolet. The two cars share the same 3.7-liter twin-turbo flat-six and the same rear-exhaust architecture; the Turbo makes 572 hp and 553 lb-ft while the Turbo S makes 640 hp and 590 lb-ft thanks to larger 61 mm turbo compressor wheels (versus 59 mm on the Turbo). The exhaust mounting points are identical, so no Turbo-versus-Turbo-S variant exists.
This guide covers the 2020–2021 model years (chassis 992.1). If you have a Sport Design or aftermarket rear bumper, double-check tip clearance, but the factory-shaped cutouts on the standard 992 Turbo bumper line up with the Akrapovic tips exactly. At NLP Performance we always confirm the last eight of your VIN against the fitment before shipping a $7,000 exhaust.
One part number covers both the 992 911 Turbo and Turbo S, coupe and cabriolet.
Tools and Parts You Need Before You Start
Installing the Akrapovic Slip-On on a 992 Turbo is a straightforward slip-on job, but it is a $7,000 titanium part on a supercar-fast Porsche, so preparation matters. Gather everything below before you lift the car.
- A two-post lift or four sturdy jack stands rated well above the 992’s ~1,640 kg curb weight
- Metric socket set (10–15 mm), a torque wrench, and a swivel/extension for the clamp bolts
- Penetrating oil for the factory clamp and hanger hardware
- Trim tools for the rear bumper fasteners and a T-handle Torx set
- Anti-seize for the tip and clamp threads, plus nitrile gloves (skin oil on titanium tips causes bluing when hot)
- The Akrapovic Slip-On Race Line muffler and, if you bought the REQUIRES-TIPS base (akrS-PO/TI/19), a matching Tail Pipe Set
One planning note that saves money: the base Slip-On Race Line (akrS-PO/TI/19, $5,324.35) does not include tips. If you want the finished look out of the box, buy the version with Black Titanium tips ($7,010.26) or Titanium tips ($6,919.92). Otherwise budget for a separate Tail Pipe Set (from $1,595.57).
How to Install the Akrapovic Slip-On on a 992 911 Turbo (Step by Step)
Plan on two to three hours in a professional shop, or three to five hours in a home garage if it is your first titanium exhaust. Work only on a cold car — the 992 Turbo’s cats reach several hundred degrees, and titanium hardware is easy to gall when rushed.
Step 1: Raise and secure the car
Lift the 992 evenly on a two-post lift or place jack stands under the factory jack points. Let the exhaust cool completely. Disconnect the negative battery terminal in the front trunk if you plan to unplug the exhaust-flap actuators, though most installs leave the battery connected.
Step 2: Remove the rear bumper or lower diffuser panel
Access to the 992 Turbo muffler is through the rear. Remove the lower diffuser fasteners and, on most trims, drop the rear bumper cover enough to reach the tips and muffler clamps. Label each fastener — Porsche mixes Torx and metric here.
Step 3: Disconnect the exhaust-flap actuators and sensors
Unplug the electric exhaust-valve actuator connectors and free any O2-sensor wiring routed along the muffler. The Akrapovic system reuses the factory valve control, so keep these connectors clean and undamaged.
Step 4: Unbolt and remove the OEM sport muffler
Support the factory muffler with a transmission jack or a helper — it is heavy. Loosen the slip-fit clamps where the muffler meets the cat-back connection, release the rubber hangers, and slide the stock unit rearward and out. This is the single heaviest step and where the 9.0 kg difference becomes obvious in your hands.
Transfer the factory exhaust-valve actuators to the Akrapovic muffler before final fitment.
Step 5: Fit the Akrapovic muffler and transfer the valve actuators
Slide the Akrapovic Slip-On onto the factory cat connections and hang it on the OEM rubber isolators. Reinstall the exhaust-flap actuators onto the Akrapovic muffler and reconnect the electrical plugs. Hand-tighten the supplied clamps so the system can still be rotated for alignment.
Step 6: Install the tips and align to the bumper
If you bought a REQUIRES-TIPS base, install your Tail Pipe Set now. Center each tip in the bumper cutout with even gaps all around, then torque the clamps to Akrapovic’s spec. Uneven tips are the most common cosmetic complaint, and they are entirely an alignment issue — take your time here.
Step 7: Reassemble, start, and verify
Reinstall the diffuser and bumper, reconnect the battery if disconnected, and start the car. Confirm the exhaust valves open and close as you cycle through Normal and Sport modes, listen for leaks at the clamps, and re-check tip alignment once the system has heated and cooled once. No tune is required and no fault codes should appear.
Akrapovic 992 Turbo Exhaust Options Compared
There is one Slip-On Race Line system for the 992 Turbo, offered in three tip configurations, plus two standalone Tail Pipe Sets for owners who want to refresh only the tips or complete a REQUIRES-TIPS base. Here is how the lineup compares at NLP Performance.
| Kit | Component | Tip Finish | Part Number | Price |
|---|---|---|---|---|
| Slip-On Race Line w/ Black Ti TipsTop Pick | Complete slip-on | Black Titanium | akrS-PO/TI/19-TPB | $7,010.26 |
| Slip-On Race Line w/ Ti Tips | Complete slip-on | Titanium | akrS-PO/TI/19-TP | $6,919.92 |
| Slip-On Race Line (Requires Tips) | Muffler only | Add separately | akrS-PO/TI/19 | $5,324.35 |
| Tail Pipe Set (Titanium) – Black | Tips only | Black Titanium | akrTP-T/S/33 | $1,685.91 |
| Tail Pipe Set (Titanium) | Tips only | Titanium | akrTP-T/S/34 | $1,595.57 |
Akrapovic Slip-On Race Line: Pros and Cons
What We Like
- + Genuine foundry-built titanium construction saves 9.0 kg (19.8 lb) over the stock sport exhaust
- + Dyno-verified +22.5 hp and +34.5 lb-ft at 3,400 rpm versus OEM
- + True slip-on: bolts on in 2–3 hours, keeps factory cats and valve control, no tune or CEL
Things to Consider
- – Premium pricing ($5,324–$7,010), and the REQUIRES-TIPS base needs a separate Tail Pipe Set
- – Race Line is louder at cold start and intended for closed-course use
Sound, Power, and What to Expect After Install
After install, the 992 Turbo gains a deeper, harder-edged flat-six growl without the boom-heavy drone that plagues cheaper cat-back systems — Akrapovic tunes the Race Line acoustics in its own facility, and the factory exhaust valve still softens things in Normal mode. Roll into Sport or Sport Plus and the extra 22.5 hp and 34.5 lb-ft show up exactly where the Turbo lives, tightening the already-savage 2.6-second (Turbo S) 0–60 mph pull.
Because it is a slip-on that keeps the catalytic converters, you will not throw a check-engine light and you will not need a custom tune. The 9.0 kg the system pulls from the very rear of the car also has a small but real effect on rotational balance — not something you will read on a spec sheet, but something you feel over crests and through quick direction changes. For owners chasing more, the Slip-On pairs cleanly with a downstream tune later, but on its own it is the highest-impact single mod on the 992 Turbo.
Frequently Asked Questions
Does the Akrapovic Slip-On Race Line add horsepower to the 992 911 Turbo?
Yes. On Akrapovic’s dyno the Slip-On Race Line added 16.6 kW (22.5 hp) and 46.8 Nm (34.5 lb-ft) at 3,400 rpm on a 992 911 Turbo versus the stock Porsche sport exhaust. The gains are strongest low in the rev range where the twin-turbo flat-six already makes big torque.
Do I need a tune to install this exhaust?
No. The Slip-On Race Line is a true slip-on that bolts to the factory catalytic converters and reuses the OEM exhaust-valve control, so no ECU tune is required and no check-engine light appears. You can add a tune later for more power, but the exhaust works fully on its own.
How much weight does the Akrapovic 992 Turbo exhaust save?
The titanium Slip-On Race Line saves 9.0 kg, roughly 19.8 lb, compared with the factory sport exhaust. The weight comes off the very rear of the car, where it has the most effect on balance.
How long does it take to install the Akrapovic Slip-On on a 992 Turbo?
Plan on two to three hours in a professional shop or three to five hours in a home garage. It is a slip-on job with no cutting or welding, but the rear bumper or diffuser must come off to access the muffler and tips.
Will one Akrapovic part fit both the 911 Turbo and Turbo S (992)?
Yes. A single Slip-On Race Line part number fits both the 992 911 Turbo (572 hp) and Turbo S (640 hp) in coupe and cabriolet, because they share the same 3.7-liter twin-turbo flat-six and rear-exhaust layout.
What is the difference between the black titanium and titanium tips?
The difference is cosmetic. Both tips are titanium; the akrS-PO/TI/19-TPB uses a heat-treated black titanium finish ($7,010.26) while the akrS-PO/TI/19-TP uses a natural titanium finish ($6,919.92). Performance and fitment are identical.
Does the Akrapovic exhaust void my Porsche warranty?
In the United States, the Magnuson-Moss Warranty Act means an aftermarket exhaust cannot automatically void your warranty; Porsche must show the part caused a specific failure. Because the Slip-On retains the OEM catalytic converters and needs no tune, it is one of the lowest-risk 992 Turbo upgrades.
Ready to Upgrade Your 992 Turbo?
Shop the Akrapovic Slip-On Race Line and thousands more performance exhausts at NLP Performance.
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