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

"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!"

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

"I recently bought reducers for a modified intake. Units fit perfectly, which made the job much easier to complete. "

"They had the exact part that I needed and I requested that it had to arrive at the location at a specific time and they performed with excellence! These guys rock "

"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..."

"Your customer service is absolutely top notch!! I will definitely continue to do business with you guys in the future and try to send as many people your way as I can. Thank you again!! Brandon "