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

"I ordered intake testsers and was able to find the leaks that Ford couldn't. The silicone vacuum hose works great!! Thick walled no collapse, a RARE FIND!!"

"This site is great and every time I've ordered, my order has arrived very quickly. Thank you!"

"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]"

"Hi there! Someone in my Myspace group shared this site with us so I came to give it a appear. Im definitely loving the details. Im bookmarking and will likely be tweeting this to my followers! Outstanding blog and great style and style. egadeefdfkaf"

"Im thankful for the blog post.Really looking forward to read more. Awesome."

"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!"