Pick up a Forge FMDVK04S Compressor Bypass Valve (CBV) if you are looking to maximize performance. A CBV upgrade is essential to sustain peak boost levels and extend reliability of your turbocharger. All Volvo turbochargers are fitted with a stock CBV which utilizes a rubber diaphragm and spring to recirculate boost back into the intake system. Because the stock CBV is designed for stock boost levels, its lifespan is significantly shortened once you increase boost (tuned engine software, etc.)
CBV Upgrade Features
We are proud to be the first to offer a CBV Upgrade Kit for the Volvo S60/V60 T5, T6 models!
The S60/V60 T5 and T6 Upgrade Kit for the K04/K16 turbocharger features a piston/spring operated valve for maximum reliability. Whereas a rubber diaphragm can get brittle and potentially crack from overuse/aging, a piston style valve is much more durable. The CBV also has an enlarged recirculation valve to accommodate the increased boost/air flow from tuned engines, minimizing boost spiking, etc. The S60/V60 CBV Upgrade is fitted with a "Stock" spring (green), capable for up to 1 bar boost. A "Tuned" spring (yellow) is also included for up to 1.6bar boost.
- 2011-2014 Volvo S60 T5 (5-Cylinder models only)
If you plan on replacing your CBV with one of our upgrade kits, we also highly recommend replacing the original rubber vacuum lines with more durable silicone lines. The rubber vacuum lines can harden and get brittle due to excessive heat and aging, which will ultimately lead to a boost leak! We offer replacement 4mm ID Silicone Vacuum Lines in either blue, black or red colors!