Fits 2018–2024 · Stage 1 and Stage 2 · Mail-in
$2,499
Stage 1
425hp
440lb-ft
From 354 hp / 369 lb-ft stock
The car
Three body styles carry the B9 S5 badge: a two-door Coupe, a Cabriolet with a fabric top, and the five-door Sportback, which 2018 brought to the US for the first time. The Sportback combines the low roofline of the coupe with rear doors and a hatchback.
Mechanically the S5 matches the S4 sedan. Its 3.0-liter TFSI V6 swaps the previous S5’s supercharger for a twin-scroll turbocharger, and power reaches the road through an eight-speed Tiptronic automatic and quattro all-wheel drive with a 40:60 split. The earlier S5 offered a seven-speed S tronic or a six-speed manual; this generation is automatic only.
The four-seat Cabriolet’s top opens in 15 seconds and closes in 18 at speeds up to 31 mph, and Audi quotes 0–60 mph in 4.8 seconds for it.
Stage 1 is calibrated for the car as it left the factory and takes it from 354 hp and 369 lb-ft to 425 hp and 440 lb-ft on pump-grade fuel. Stage 2 is calibrated for supporting bolt-on modifications and high-octane fuel, for 460 hp and 480 lb-ft. The gearbox has its own controller and torque limits, so the optional TCU tune raises them to match, with sharper shifts and stronger clutch clamping.
Figures & prices
Factory and tuned horsepower and torque from our catalog, with prices for each stage and add-on.
| Model year | Factory | Stage 1 | Stage 2 | Add-ons |
|---|---|---|---|---|
| 2018–2024 | 354 hp / 369 lb-ft | 425 hp / 440 lb-ft $2,499 | 460 hp / 480 lb-ft $2,499 | TCU tune $2,499 |
Tuned figures are estimates, not guarantees. Actual results vary with the car’s condition and modifications, fuel quality and octane, temperature, altitude and the dyno used. See our Terms of Service.
How it works
Choose your year, stage and add-ons and check out securely.
Pack it with your printed order confirmation email and send it to our Phoenix shop.
Within two business days of it arriving.
Return shipping is on us. Reinstall and drive.
FAQ
More answers in our FAQ
Our online catalog lists Stage 1 and Stage 2 tunes for 2018–2024 Audi S5 (B9) models. Choose your year at the top of the page; the figures and prices are the same for every year.
Yes. All three use the turbocharged 3.0-liter V6, the eight-speed Tiptronic and quattro. They differ in body and seating: the Coupe and Cabriolet are two-door four-seaters, and the Sportback adds rear doors and a hatchback.
The RS 5 of the same generation uses a 2.9-liter twin-turbo V6 with considerably more output and comes with a quattro sport differential as standard, and it was offered as a Coupe and Sportback but not as a Cabriolet. It has its own page, RS 5 (B9).
Stage 1 is calibrated for the car as it left the factory and runs on pump-grade fuel. Stage 2 pairs the calibration with supporting bolt-on modifications such as downpipes and runs on high-octane fuel. On a 2024 car, Stage 1 takes it from 354 hp to 425 hp. Stage 2 takes it to 460 hp.
A TCU tune is available as an add-on ($2,499). It raises the transmission’s torque limits and sharpens the shifts so the gearbox can handle the extra power. Ship your TCU in the same box as your ECU.
More Audi tunes
Contact
Customers across the US order online and mail us their ECU. Our shop is at 952 W Melinda Ln, Suite D in north Phoenix (Deer Valley, 85027), and local owners are welcome to bring their car in. Call, visit or send us an inquiry.