Reliable Bluetooth connection via external aerial—perfect for rear-mounted VW T2/BUS engines Fully programmable ignition curve with anti-theft, soft rev limiter & real-time tuning Easy install, no mods needed—fits VW air-cooled engines with included instructions Requires custom advance curve tailored to your engine For either 6 or 12 volt vehicles The 123 Ignition TUNE+-4-R-V-V-EXT-BLUE distributor is a premium upgrade for classic Volkswagen air-cooled engines, especially rear-mounted setups like the VW T2/BUS. Standard Bluetooth modules struggle under the metal engine cover, but this model solves that with an external Bluetooth aerial, ensuring a stable connection for real-time tuning via the 123 Tune app on iOS or Android.
