Dynotech all the way! I've been up to 140mph with 0 vibrations, smooth as silk.
What did they say when you contacted them?
I received a RMA# and sent it back to be repaired. I did plenty of research and didn't read of any failures, must of been made on a Monday
I am in the same boat here. Just googled searches for random experiences with DS. Found this thread here. I am currently shopping for a DS as one of my final mods. Now, DynoTech or SHAFTMASTER is the question? And after reading these pages, I see both have very satisfied customers. Thanks for making it even MORE difficult...lmao!
Anyone know the weight difference between these 2?