DynoMax Performance Exhaust is proud to announce its continued partnership with Shannon Campbell; the only two-time King of The Hammers champion. Our partnership with Shannon started out with a bang in 2011 when Shannon stood at the top of the podium as the prestigious King of the Hammers champion, and ULTRA4 Series overall champion that same year. Shannon's success continued in 2012 with a 3rd place finish at KOH and 5th overall in series points.
Gilbert, Az – July 18, 2011 – Team Monster Energy dominates the Ultra4 American Rock Sports Challenge round 4 with 3 cars in contention for the win @ Miller Motorsports Park. With Shannon Campbell and Nick Campbell winning al
July 25, 2011 – Tooele, UT: Question: What do you get when you cross a dirt short course track with a formidable man-made rock crawling course? Answer: The Ultra4 American RockSports Challenge.<
