Only had it for about a month but so far great
"Im running a decent reliable build around the 600 hp range and put this turbo in when the actuator on my old one went out. I didnt notice a huge power gain but it was definitely there, especially in the top end but the exhaust brake was alot stronger and the sound is noticeable if the stereo is off but its not overwhelming at all which was a major concern for me because I use this truck to drive across state lines semi frequently but the rumble and turbo sound when it does light is awesome and so far performance has been amazing, it also dropped my egts by almost 100 degrees Fahrenheit on the top end which was awesome and helped me feel alot better running my usual 150hp tune while pulling 33,000 lbs up a mountain pass"