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

"Free shipping would be cool =p But seriously- You guys are awesome. Good experience and quality, time after time. Thanks for the great products for awesome prices."

"Don't have a question. I received my first time order from you and just finished installing new fuel line today. Just wanted to say how impressed I am with your products. You are half the price of the name brand products like Earl's and seem to be of just as high of quality. Thank you."

"Recieved package as arranged. Your products are great! Thank you very much, will be ordering more shortly"

"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!"

"...ive ordered from you before and love your products and fast shipping. Thanks"

"Your products rock! I really enjoy your stuff, it makes building a car so much better. All the angles, bends, sizes, etc-- great stuff. I really like the new intercooler piping that has the heat cores-- too cool. "