Akrapovič Alfa Romeo Selvio Quadrifoglio Slip-On Titanium Exhaust System
Constructed from high-grade lightweight titanium and finished with eye-catching handcrafted carbon-fibre and titanium tailpipes – carbon on the outside, titanium on the inside – the Slip-On Line (Titanium) is designed to enhance the kerbside and drive-by appeal of the Stelvio Quadrifoglio. This exhaust system is engineered to fit directly onto the Stelvio Quadrifoglio’s stock link-pipe and includes parts cast in the in-house foundry, such as the valve housing and an X-connection element in the muffler. These components are meticulously crafted to allow exhaust gases to mix at a precisely defined ratio, ensuring optimal flow.
The exhaust system is designed to deliver both power and torque gains across the entire rev range. Through in-depth engineering, unwanted drone has been eliminated, resulting in a deep and sporty sound that is ideal for everyday driving. This also provides the driver with acoustic feedback, helping them to sense and feel the engine’s rpm and know when to shift gears for the best aural experience and performance. The result is a smooth, linear sound during partial load gear shifts, while at higher rpms, the Slip-On Line (Titanium) produces a racing-inspired sound with enhanced high-engine harmonics.
The system is easy to install with a simple plug-and-play operation and has been designed to meet ECE type approval. The optional Akrapovič Sound Kit is also available.
Exhaust Data
| Unit | Stock | Akrapovič | Max gain | |
|---|---|---|---|---|
| Max. power | kW | 369.9 / 6650 rpm | 372.9 / 6650 rpm | + 4.5 / 6500 rpm |
| HP (m) | 502.9 / 6650 rpm | 507 / 6650 rpm | + 6.1 / 6500 rpm | |
| HP (i) | 496 / 6650 rpm | 500.1 / 6650 rpm | + 6 / 6500 rpm | |
| Max. torque | Nm | 663.7 / 2950 rpm | 668.7 / 2950 rpm | + 7.6 / 3100 rpm |
| lb-ft | 489.5 / 2950 rpm | 493.2 / 2950 rpm | + 5.6 / 3100 rpm | |
| Weight | kg | 19.45 | 13.21 | – 6.2 |
| lb | 42.9 | 29.1 | – 13.8 | |
| % | – 32.1 | |||
| Inst. time | min | 300 |





