what do i need to do to upgrade my mouth piece?
I re-read my post and it sounded rude. I do appologize if you took it that way. It wasn't meant as a jab towards anyone.you got me!
You are correct. I didn't notice anything other than my oil being a tiny bit clearer between service intervals. The mouthpiece on the other hand will make the turbo spool quicker and it will also enhance the whistling noise as well. If you want to further enhance the whistle and get rid of some of the screetching noise upon hard accelleration i would recommend the DE direct pipe. It is on my to do list as well as upgrading from a modded LLY mouthpiece to an AFE!i thought you block egr to keep recirculating soot? i NEVER heard these things about spool faster while blocking the resenator...i did it to my truck nd didnt notice a damn bit a diff..i did it or turbo whistle...it still didnt make a dif...IMOP