I just got back from the dealer who had to turn off my "Service Engine Soon" light because my "Low Coolant Temp" code set it off.
I believe the only reason it went off was because I attempted some performance driving after only about 5 min. I came on at the exact moment of a burnout acceleration run.
What'* the point of drilling the holes for cooler performance ie. drag racing, if it will set off the warning lights.
And I had to strip off my CAI and make it look stock again for the Dealer service because of the warrantee
I'm running the 180 Stat drilled with 4 - 1/16" holes.
Outside temp. is only 40 F and it takes 10 full minutes of driving to warm up to 180 F.
If I push the car the temp will climb to about 186 F.
Compared to 5 minutes warm up time with the original 195 stat undrilled.
I haven't tried the 180 stat without the drilled holes.
If I had to do it again, I wouldn't drill the holes at all.