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

"Great products and Great prices. Wish you guys would set up a page for us to show your products on our cars...."

"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."

"Ive bought a bunch from you guys great price and quality I recommend you guys to many of my customers"

"Thanks for your great products,I gained app 40 to 50 hp from stock intercooler to type 14 with no other mods. App. 5 mph [on a jetski]"

"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! "

"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!"