Cylinder 4 cooling Mod.
 

I have recently installed the small reform and so far without any inconvenience. reading a lot and searching I have not found more information that really proves the effectiveness of it, so I chose to make measurements by myself in my vehicle. effectively the temperature of the LH Head is reduced between 4 and 5 ° C. this by executing an override in real time of the hose by means of choking, then I made measurements with an IR pyrometer in working temperature condition and at idle. but it would be interesting if someone has managed to measure this on a vehicle with independent EGT pyrometers on the exhaust manifold and under load. to evaluate and see if the temperatures are really balanced. assuming that the mod works as it says not only the coolant temperatures in the head's should be equalized but I assume that the EGTs should be fairly equal, has someone done independent tests on your vehicle on this reform? I found it very interesting and a topic to debate.