Edge CTS Race , 4" Magnaflow, S&B cold air intake, EGR blocker plate,EGT probe all DIY, After my recent trip pulling my 5th wheel, I was not happy with the milage, power, and the amount of fuel I used! I have A 2010 3500 CC DRW duramax. So I contacted the guys at alligator performance, and they set me up. I finally got the EGR blocker plate installed tonight..... mo#$%^&*() piece of crap installed, in case you didn't realize all those symbols are all the cuss words I know! and then some. After bloody knuckles, sweat and getting dirty I succeeded! And the truck runs great, I cant believe the difference > I havent had it out on the highway yet to check mpg . I"ll keep you posted , I did the whole job myself and saved lots of dough . Thanks to the guys at alligator perfomance, I realize the warranty issues but what the hay,, I got my truck back from emission hell!R

I agree. That is the worst mod to install on these things. I too had severe bloody knuckles, cuss words were flowing from my garage that day. Alligator Performance is a great shop. I just ordered an MBRP single stack kit from them and it arrived in just 2 days. Can't wait to install it. I hope your mileage improves. Just go easy on the go pedal.

Moved to other performance discussion