Originally Posted by ruvalcaba
bkr6eix-11 <-- original
bkr7eix-11 <-- 1 step colder
if i were u id go with the step colder.
If you run the 7 you will have serious idling issues. The 7 is for highly modified FI cars with Nitrous. 5 is stock, 6 is what you should get. Stock number is 3764.