GMC Sonoma Performance Mufflers

Reviewed By Abel M (Santa Ana, CA) Reviewed for a 1993 GMC Sonoma —11/4/2008 10:21 PM

I drive a 93 GMC sonoma with a small 2.8 six cilinder engine in it. A tiny engine indeed but equiped with 44's i promis you its louder than the average V8. WHen i hop on the feeway i dont step on the gass as much as i use to in order to reach 65 /70 mph so a slight increas in power wass also noticed. THe only down side of this muffler is that you wont be able to sneek your girlfriend out of her house late at night anymore. Evey single car alarm goes off in small neighborhoods. In conclusion, loud interior and loud outside.

Reviewed By Robert O (Apple Valley, CA) Reviewed for a 2014 GMC Sierra —6/9/2017 1:07 AM

The only mufflers I buy are these... Mellow at Idle but you when you cut her lose these mags sound amazing, not like those beer can mufflers from Santa Rosa Ca

Reviewed By Chad H (Lake Charles, LA) Reviewed for a 2013 GMC Sierra —3/29/2017 4:55 AM

Overall, I am happy with the muffler. As my daily driver and primary family vehicle used for traveling, I didn't want anything too loud. This muffler is a little louder than what I expected, comparing to a 50 series installed on same truck. I removed the 50 series last year and had to go back with the factory muffler due to a drone when pulling my trailer or boat. Using Flowmaster's sound chart, I thought the 70 series would be only choice as it looked to be the quietest muffler Flowmaster makes