I got a pair of Denso 660s off of the classifieds but I want to make sure that they are really 660s. The top is blue and they say denso. The number on the side is 195500-0610. If anyone can help or let me know someone I can call that would be great. Thanks

yup. to be sure, you should send them out and get them cleaned and flowed.

http://www.witchhunter.com/FlowDataPix/d1955000610.jpg

my denso 660 are purple top are you sure they are 660

Google that part number. Seek and you shall find!

Thanks

I called greddy today and they said that the purple tops are 550s, darker blue are 660s and turquiose are 720s. You mite wanna check those purple tops out vegas because my friend just sold a set of purple tops and they were 550s. Anyone else know if what im sayin is rite. I assume if greddy says that its rite.