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

"Thanks for providing the awesome service as usual! On Oct 28, 2014"

"Thanks for resolving this issue so quickly. This is truly exceptional customer service. You count on me for another purchase should the need arise."

"First I would like to say thank you for the great reliability to shipping and guarantee that your site provides and your customer service is outstanding! I wish everyone is as reliable and this easy to work with."

"Wow, in all seriousness... this is awesome. I've never delt with a company that has this good of comunication and get things done. If the stuff is as good as the customer support, I'm getting you guys more customers."

"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!"