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

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

"I purchased a slimline radiator fan from this website. They had the best price available by far. The fan worked with zero issues."

"Thank for quick and easy solutions to our silicone needs. Your website is so well designed and everything is easy to find it only took us 3 minutes to find everything! Keep up the good work guys!"

"Thank you with your help great service very happy now have a nice day. Jesse"

"Thank you so much for the prompt service. Your silicone couplings, lengths etc. are second to none, great quality and the t-bolt clamps are top notch. Thanks for the help on my GTI-R swapped 91 sentra its really quick."

"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!"