Reviewed By Thomas T (CAMARILLO, CA) Reviewed for a 2013 Chevy Sonic —12/21/2015 11:54 AM
Great improvement. Have cat back exhaust without resonator and k&n filter. Spool up timing improved, power improved.
Reviewed By Andrew W (BRENTWOOD, CA) Reviewed for a 2012 Chevy Sonic —2/4/2015 8:58 PM
Since the purchase of my bully dog, I have yet to be able to install it due to a code error within my car. Other than that, Bully dog customer service is great and helpful and hopefully I can get it fixed soon and put it to use.