The blow off adapter fits between the existing electromagnets and the turbocharger housing and stops hot air circulation and reduces the delay Fits 2007-2012 (R56, R57), for 1.6 turbo engines 207 GT 307 & 308 Improve turbine response, vent extra air into the atmosphere instead of redirecting it back into the engine line Made of high quality aluminium alloy, corrosion resistant and for long-term use Improve the performance of turbo engines and extend the life of turbo engines, Manufacturer: Akozon