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

"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."

"that will be ok i love the service i got from your company yal rock... i will tell all my hot rod friends about your service ,i just got my car done today and it runs very good thanks jerome..."

"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!"

"Thanks for the great customer service! I'm planning on ordering from you again soon."

"Super fast shipping! High quality tubing as well. So nice to get what I ordered within 2 days."

"This is the only place I could find such a small, specific silicone reducer! Thanks"