Has anyone used the pacesetter 1 7/8ths that say they fit the GMT900s? I know there have been some that say the GMT800 1 7/8ths fit, but I thought there were some slight modifications needed and I still didn't find out for sure they fit with a 6L80E.

These are on their website and show out of stock and can't find them anywere, but if they are the same as the GMT800s with just a diff. part number, I'd just as soon get the old model since they are available everywhere.

 

I run the gmt800 ones. The o2 sensor bungs are junk, removed their crap and added my own. Moved the passenger o2 away from the frame, deleted the egr port. Also built my own y pipe.
For 300.00 or so they arent bad, but i think if you have 500-600 budget you should look into a set that fits