Reviewed By jonathan j (Metairie, LA) Reviewed for a 2001 GMC Sierra —6/21/2008 4:06 AM
Sounds great on my 01 sierra. really opens it up for some more power.
Reviewed By Brad S (Franklin, OH) Reviewed for a 2001 GMC Sierra —11/27/2006 8:39 PM
These headers really helped wake up the bottom end of my truck. Construction and finish are excellent. These are probably the best header out there for a 4x4 truck that needs all the low end torque they can get. The 310Y is a long tube headers and gives you the best power band, better than the newer midlength model.
Reviewed By Alonso G (KEYES, CA) Reviewed for a 2000 GMC Sierra —8/21/2015 8:14 PM
I got the stainless ones great price, first thing I noticed when I first turned on my truck with the headers on was the throttle response and also mpg gain and when they started breaking in the hp and torque gains started coming in and I noticed the gains as well very satisfied.