We have been tuning Cadillac's all the way back to the OBDI cars. N0DIH is our authorized tuner on the board. We have tuned about 10 XLR's, 3 V's and several STS's and STS-V's. We try to stick with 2006 STS-Vís and 2007 up for the other RWD Northstarís
2004 to 2006 XLR tuning takes us a long time. We would need to car at our shop in Rock Hill and it will take about 30 dayís to get the tune done.
We do upgrades to these cars also. Contact N0DIH or email him at email@example.com.