Darton sleeve question......

300-035-SF 3.455 3.751 0.148 5.335 0.200 3.920 SR20 86-90mm
300-035-DF 3.455 3.751 0.148 5.335 0.200 3.920 SR20 86-90mm

http://www.dartonsleeves.com/sl_import.htm

they’re both SR20 sleeves, the only difference is one P/N ends in DF and t he other SF. Nissan is the only one that does this, Honda, Toyota, and Surbaru don’t.

whats the difference and which one do i want??

thanks,
Fitzy

Send them an email - I’m sure they’ll let you know