![Took off the EGR Cooler the other day to clean. Most intensive job I've done on this car, but 10mpg increase when finished with very slight flow. Still needs to be replaced Took off the EGR Cooler the other day to clean. Most intensive job I've done on this car, but 10mpg increase when finished with very slight flow. Still needs to be replaced](https://i.redd.it/1pbbce4653k31.jpg)
Took off the EGR Cooler the other day to clean. Most intensive job I've done on this car, but 10mpg increase when finished with very slight flow. Still needs to be replaced
How to Clean EGR Cooler 2009-2015 Toyota Prius (2009, 2010, 2011, 2012, 2013, 2014, 2015) - iFixit Repair Guide
![2560137010 USED EGR Cooler (exhaust gas cooler) Toyota Prius 2011 1.8L 27EUR EIS00720463 | Used Auto Parts Shop 2560137010 USED EGR Cooler (exhaust gas cooler) Toyota Prius 2011 1.8L 27EUR EIS00720463 | Used Auto Parts Shop](https://cdnshop.euroimpex.lt/463/00720463_5201889188.jpg)