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CTS Turbo B8/B8.5 AUDI 2.0TFSI BOSS500 KIT (2009-2016)
CTS Turbo B8/B8.5 AUDI 2.0TFSI BOSS500 KIT (2009-2016)

CTS Turbo B8/B8.5 AUDI 2.0TFSI BOSS500 KIT (2009-2016)

CTS TURBO
Availability:
in stock, ready to be shipped
SKU CTS-B8A4-BOSS-500
$2,599.99 - $2,599.99
$2,599.99
$2,599.99 - $2,599.99
$2,599.99
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We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.

The long wait is over! CTS Turbo is happy to announce the release of the B8/8.5 2.0T Boss500 Kit. You now have a solution for a big turbo kit that is truly bolt-on. This kit replaces the factory turbo and is made to work with most of your installed parts. Fully compatible with any test-pipe or high-flow cat, as well as any intercooler. The kit works with factory or upgraded diverter/blow off valve. The intake kit is provided the larger big turbo needs more air flow. This kit is made to re-use your factory oil drain and coolant supply line for easy installation. All parts required for installation are included. Don't be fooled by other manufacturers putting a larger turbo into a stock housing. It is not beneficial, and that is why we made our own! Fitment: B8/B8.5 Audi A4/A5/Allroad 2.0TFSI (2009-2016) Kit Features:
  • CTS Turbo 50/67 dual ball-bearing CHRA with 8-blade billet compressor wheel
  • CTS Compressor cover with integrated diverter valve flange
  • CTS 2.0T Longitudinal Turbo Manifold, machined for B8/B8.5 fitment
  • CTS 3″ turbo inlet pipe kit
  • CTS proprietary turbo inlet silicon
  • CTS turbo air intake heatshield
  • CTS Re-usable high flow air filter kit
  • CTS Oil feed line kit with all associated fittings
  • CTS Coolant line kit with all associated fittings
  • Gaskets, nuts, studs, clamps, bracketry
Required hardware:
  • High-flow downpipe
  • Intercooler upgrade
Note: due to the installation difficulty, we recommend that work is performed by an experienced performance shop mechanic. Proper software tuning is required. Please contact your preferred tuner for software solution. Fueling upgrades are required for BOSS 600. Engine connecting rods and head studs upgrade recommended. DOES NOT FIT EUROPEAN GEN3 B8 VEHICLES. ONLY EA888.1 EA888.2 Installation Guide

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 6 applications
ALLROAD
Make Model Engine Years
AUDI ALLROAD 2009–2016
AUDI ALLROAD (B8/8.5) 2009–2016
A5
Make Model Engine Years
AUDI A5 2009–2016
AUDI A5 (B8/8.5) 2009–2016
A4
Make Model Engine Years
AUDI A4 2009–2016
AUDI A4 (B8/8.5) 2009–2016

Fitment data last updated: 2026-06-29