Description
The APR K04 Turbocharger System is an OEM drop-in turbo upgrade that dramatically increases power and performance. With this upgrade and the accompanying software, expect power similar to heavily tuned high-end vehicles such as the Golf R, S3, TT-S, and others where the K04 turbo comes standard. The system offers lightning-fast transient response with minimal lag, delivering power quickly and maintaining it throughout the entire powerband. Designed as a budget-friendly upgrade compared to larger turbocharger systems, it requires minimal additional hardware, most of which is already available to APR Stage 2 customers.
Fits 2008-2018 Audi A3, Q3, TT, Volkswagen Beetle, CC, Eos, GTI, Jetta, Tiguan, Tiguan Limited
The heart of the system is the Borg Warner K04-64 turbocharger, utilizing Genuine Borg Warner components. The CNC-machined billet compressor wheel and stainless steel exhaust manifold represent significant advancements in technology, performance, and reliability over the factory unit. Unlike the off-the-shelf K04-64 units, APR's customized version integrates the diverter valve (DV) into the compressor cover, reducing clutter and potential boost leak points. The turbo muffler has been removed and replaced with an ez-flow silicone hose, ensuring a simple and clean installation. With thousands of these units sold over more than a decade, the K04-64 turbocharger is proven to be both powerful and reliable.
MAP Sensor:
Each kit includes a factory Bosch 3-bar MAP sensor, necessary for optimal performance.
Installation Hardware:
APR ensures a headache-free installation by including all necessary gaskets, nuts, bolts, washers, studs, and one-time use clamps with the system.
Software:
The purchase includes APR's Stage 3 K04 ECU Upgrade, tailored for this turbocharger system. Visit the applicable vehicle ECU upgrade page for detailed information about the software, including recommended and required hardware, power figures, and other specifics.
Features:
- Significant power and torque gains
- OEM K04 drop-in turbo
- High-quality materials and components
- ECU software included
- Bosch 3-bar MAP sensor included
- Genuine Borg Warner components
- DV integrated into the compressor cover
- Turbo muffler deleted
Emissions:
This part is legal for sale or use only on Racing Use Only Vehicles. Racing Use Only Vehicles are those used exclusively for competition, not registered, and not used on public roads. Installing this part on an Emissions Controlled Vehicle is against the law.
Tech Resources:
Please note that specific software is required to use this system, and it is included with the purchase. Software compatibility must be verified before purchase. This system also requires additional hardware to function properly, including a race downpipe, intake, intercooler, transmission software, and NGK BKR8EIX spark plugs gapped to 0.024" ±0.002" (0.6mm ±0.05mm) with a change interval of 10-15,000 miles (16-24,000 km). Transmission and engine internal upgrades may also be necessary. Some engines may exhibit valve float, which can be addressed with lower torque software or upgrading the head with APR Valve Springs (MS100085).
