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

"My blue silicone vacuum hoses i ordered from you in 2008 still look brand new today.Great hoses.Thanks "

"Just wanted to let you guys know that your site is great and I linked it on one of my local automotive forums. After i get the products in and install I'll more than likely be posting it up on some national/global mustang boards if all goes well..."

"Loved your last products. Very well made. Welds were superb on the steel tail blow off valve flange."

"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 Cody I appreciate the great customer service and great communication with quick response. I have ordered from you previously and will continue to buy from you guys based on the pleasing and painless transactions. Thank you."

"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!!"