Harris, who won the BCC Trophy championship in 2012 and 2013, will once again use his GSR Maxilight which will be supported by Bristol Street Motors.
"I am very pleased to be returning to the championship with the backing of Bristol Street Motors," said Harris. "We had a great battle in the G1 class last year and I'm looking forward to resuming the competition with Steve Smith, Richard Green and any other crews who join us. It should be a very interesting season."
"I'm also looking forward to seeing the new cars that are entering the BCCC this season and I think the championship is back on the up and the future looks very good."
The BCCC title will be fought for over six rounds throughout the UK with round one taking place on 9/10th April.