These were in my opinion the best mods you could do for your 22R/E motor. They didn't break the bank, and the overall health of the engine and performance was noticable. I love these motors to death, and this helped my camper immensely.
Here is the mods from LCE Performance.
Headers:
www.lceperformance.com/Street...
Pro Torque Cam
www.lceperformance.com/Pro-To...
Flex Fan Cooling
www.lceperformance.com/Flex-F...
vanlife,toyotamotorhome,sunrader