VW Jetta, Golf and Beetle 2.5L Tunes (CBTA/CBUA)

The 07K is VW's 2.5 liter inline-five. The 2005 to 2007 Jetta and Rabbit run the BGP and BGQ, 150 hp on the Bosch ME7.1.1. From 2008 it is the CBTA and CBUA, 170 hp and 177 lb-ft, in the Jetta, Rabbit, MK6 Golf, the 2012 and later Beetle and the Passat: on the ME7.1.1 for 2008, on the ME17.5.6 from 2009. CBTA or CBUA? The same engine; the CBUA is the California PZEV version, with an extra catalytic converter and a third oxygen sensor, and both tune with the same gains.

One VW 2.5L 07K tune covers every code and both ECUs, from Stage 1 to the Stage 3 SRI. The New Beetle's BPR and BPS have their own page. Which ECU you have and what each stage needs: the VW 2.5L 07K tuning guide.