Originally Posted by
pcfriend
Ron I was thinking of running the 2057 with my b6, should I be looking at the 2058, I want to order this pipe today. The track I run at is big and technical, it will be changed next month for the nitro challenge.
It depends on what you are looking for. The pipes break down the following way:
2013, most bottom end, most mid range 2nd most top end, worst fuel economy.
2057, smoothest power across the board, little less top than the 2013. Best fuel economy.
2058, 2nd most bottom and mid range. Most top end, 2nd best fuel economy.