I just wanted to pass on my experience with DSS in the last couple months. It was great in every aspect. I actually purchased the shaft through Lethal (Valentine's Day sale) but there was an issue that caused a constant vibration so I contacted and dealt with DSS directly. Calling them gets you an actual person to speak to (which is always nice) and for tech questions you actually get to speak to the owner of the shop Frank. Frank is very knowledgeable and willing to work with customers, and also converses with you like you're a capable human being. He doesn't just assume that it was installed incorrectly. When I described the vibration he (correctly) diagnosed that there was an issue with the CV end of the shaft and that he would send me another shaft with a return shipping label for the one I had. He charged me a deposit for the original shaft but refunded it once I shipped it back to him.
Put the new one in and it is completely smooth all the way up to the top end limiter. It allows significantly more HP to the wheels than the OEM unit and the car feels snappier (well as much as an electronic throttle setup can be). I can't say much about noise as I have a completely solid UCA/bushing setup so I can hear everything anyways (it isn't any louder than it was though).
So all and all, great product and outstanding customer service from DSS :bigthumbsup.
Put the new one in and it is completely smooth all the way up to the top end limiter. It allows significantly more HP to the wheels than the OEM unit and the car feels snappier (well as much as an electronic throttle setup can be). I can't say much about noise as I have a completely solid UCA/bushing setup so I can hear everything anyways (it isn't any louder than it was though).
So all and all, great product and outstanding customer service from DSS :bigthumbsup.