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

"THANK you VERY much for your help in replacing those pieces. I will definitely order more in the future. Thanks!"

"Now this is service!!!, item shipped within a hour of ordering!!! I own a shop and will be passing your info on to anyone I know."

"I recently bought reducers for a modified intake. Units fit perfectly, which made the job much easier to complete. "

"that will be ok i love the service i got from your company yal rock... i will tell all my hot rod friends about your service ,i just got my car done today and it runs very good thanks jerome..."

"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!"

"hi, just thought id let you know i have recieved my order, and am very happy with it, and extremely impressed with your service. i have passed on your good deeds to a few freinds who will be buying water to air intercoolers and other accesories very soon. cheers"