2018-Present Audi S4
With a full support within Software & Tuning, Wheels, Brakes, Engine Hardware and so much more. we'll have your 2018+ Audi S4 performing at it's full potential.
- Delivers up to 411 HP with 551 FT-LBS (APR Plus)
- Delivers up to 411-491 HP with 551-629 FT-LBS depending on octane (APR Stage 1)
- Delivers up to 529-620 HP with 554-622 FT-LBS depending on octane (APR Stage 3)
- Max gains of +103 AWHP and +190 AWFT-LBS (APR Plus)
- Max gains of +103-171 AWHP and +190-249 AWFT-LBS depending on octane
- Supports 91 AKI, 93 AKI, 100 AKI, 104 AKI, and E60-E85 fuel grades (APR Stage 1 & 3)
- Max gains of +172-171 AWHP and +255-263 AWFT-LBS depending on octane (APR Stage 3)
- Optional factory term limit matching limited powertrain warranty with APR Plus
- Standing RPM soft limiter increased
- Left-foot braking / brake boosting added
- Properly rescaled performance gauges
- Optimized launch control strategy for faster response and boost building
- Optimized driveline protection during launch
- Optimized thermal management and additional protection
- Optimized exhaust crackle temperature safeties
- Optimized high-gear LSPI protection and turbocharger protection added
- Optimized the factory volumetric efficiency low end torque fluctuation
- Speed limiter removed
- Increased rev limiter for use with TCU upgrades
- Exhaust flaps recalibrated to provide better performance and increase sound during free-rev
APR INTAKE SYSTEM
- Full intake system: Inlet, airbox, filter, and inlet piping
- +19 AWHP & +20 AWFT-LBS gain over stock (APR Stage 1 93)
- Flows 31% more than stock
- Reduced pressure drop at the turbo inlets
- Improved linearization across the turbos
- Enhanced engine sound
- Carbon fiber construction
- Turbos spool faster
- Turbos operate more efficiently
- Massive 7” x 7” filter with a 4” outlet and 5.5” frontal inlet
- High flow and washable pleated cotton gauze filter material
- Airbox has additional flow paths faced away from the engine
- Inlet piping diameter is maximized from the 4” filter all the way to the turbocharger
- Find Your Parts
- Clear Selection
Sort By:
Filter
Availability
Categories
price
-
to
Engine
- /3.0L V6
- 3.0L V6
Submodel
- Premium
- Premium Plus
- Prestige
Applied Filters:Clear All
Items 1 - 90 of 90 Items
Sort By:
- 1
Shop S4 Parts by Year:
Back To Top