Reviewed By James A (UNIONVILLE, MI) Reviewed for a 2000 GMC Sonoma —7/3/2014 9:05 AM
I installed this on my gmc sonoma 4.3l auto. It improves breathing, adds a mild amount of power across rpm range and makes a significant noticeable improvement at full throttle. Adds a minor "growl" that is quite enjoyable without being obnoxious. Picked up a little mileage too, about 2mpg on average - but only when I can resist the urge to stomp on the gas. Installation was simple and straightforward,it fit - but didn't seem made to fit. Minor adjustments required.