Saleen N/A 99-04 Saleen Owners non-supercharged

Hello everyone,
Let me introduce myself, my name is Ted and I am a fellow Saleen mustang owner. I am new to the forums and came aboard seeking some information. I currently purchased a set of Saleen Underdrive Pulleys from fellow member 2kSVT (great person by the way ) and was just informed by him that the crank pulley was piggyback design unlike Steeda's one piece design. From what I heard, piggyback style crank pulleys were bad because they wobbled and sometimes threw Check Engine lights. My question to all you N/A 99-04 Saleen S281 Owners is, have you encountered any problems with you're Underdrive Pulleys (wobbling, CEL, belts, etc)? Any feedback would be helpful. Thanks Everyone!

Also, do any of you have any pictures of the Saleen Underdrive Pulleys installed? Im going to need it for reference.