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

"Thank you for the quick response. I've had nothing but good service in the past and will continue to be a customer in the future."

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"Meredith, You're my favorite customer service person of all time, just to let you know how highly I think of you. I tell all my car buddies to ask for you by name."

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

"[Thanks] For a great product. Huge improvement over the stock fluidyne. Unbeatable price too. My truck never ran better."

"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!"