The Dinan "warranty" is the most extensively perpetuated falsehood on this board. If you are going catless, then the Dinan flash you are referring to is the racing software and neither it nor the Dinan X-pipe are warrantied in any way other than "workmanship" which means nothing.
"RACING ONLY PRODUCT:
Due to the nature of the intended use, Dinan Racing Products are guaranteed against defects in workmanship only. These products are not warranted against wear and/or failure under any circumstances. These products do not fall under the standard Dinan Limited Product Warranty. Racing-only parts may also affect the BMW warranty and emissions warranty."
Last edited by mfeltiii; 03-06-2010 at 12:39 AM.