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

"Thank's for making the ordering proccess to easy . I few guys I know have brought Water/Air IC of you and have had nothing but praise for you . "

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

"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!"

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

"Great products, great service. Customer for life. "

"Howdy, just found your website and really glad I did. Really great how you are making intercooler piping AFFORDABLE. I had just paid About $180 for only a few pieces of piping, and it makes me sick...but now I know where to get it, and I'm gonna tell my buddies about this site too! "