Celebrating 20 years of selling the highest quality parts at the lowest prices. Guaranteed.

"Fantastic Prices! Best I could find, bar none! Thank you!"

"Just wanted to say thank you. I have ordered from you guys 3 times now your shipping time is very fast, and the product is very accurate as well as high quality."

"Awesome quality, good packaging so no damage and they arrive sooner than expected, awesome site. thanks "

"Thanks for the response. We have an inside joke that you guys only hire ninjas with how fast your service is. SIS is definitely the first place I check for parts. You guys have a great thing going on there. Thanks!"

"WONDERFUL! Shipping is blinding fast! The site is great because there is an automatic inventory counter to tell you what is in or out of stock. Great site! Ordered from them several times without a hitch at all. And not to mention that their prices are CHEAP! "

"Thank you for your continued excellent service"