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

"Thank you for having the best prices that I can find. I have looked for hours on line and spent hours going from auto parts house to parts house and you have the best prices around."

"Best prices anywhere! Thanks!!"

"looking forward to trying your products.haven't dealt much with an fittings and i hope that if i have any questions your company can help me out.your company came well recommended by some good friends of mine."

"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!"

"Its great dealing with small companies like yours that still take care of their clientele."

"Keep up the good work,"