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

"i have their W2A ic core/ice box/pump, i got some tbolt clamps and couplers, also a 3" vband clamp with fittings. All very fast shipping and everything is perfect thus far."

"My order needed a slight change and the sales team was quick to make the adjustment. once it shipped the whole order only took about 3 days to deliver 1000mi away. The parts are very good quality "

"you guys are great, place a few orders with you now, and I always receive what I ordered fast. Thanks for your services!"

"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!"

"cold air intake for my civic at 1/4 the price, and 10X the looks"

"Thank for quick and easy solutions to our silicone needs. Your website is so well designed and everything is easy to find it only took us 3 minutes to find everything! Keep up the good work guys!"