Reviewed By J (Johnson, KS) Reviewed for a 2017 GMC Sierra —4/10/2018 8:35 PM
This system is insane! It looks great, and the sound is like no other cat-back I've heard. The cold-start is VERY loud (which my neighbors probably hate), and the burble in downshifts is very addictive. I did have to use a tuner to switch off cylinder deactivation as it made an obnoxious noise which you don't normally notice. Highly recommended!