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"i have their W2A ic core/ice box/pump, i got some tbolt clamps and couplers, also a 3" vband clamp with fittings. All very fast shipping and everything is perfect thus far."

"Thank you so much for the prompt service. Your silicone couplings, lengths etc. are second to none, great quality and the t-bolt clamps are top notch. Thanks for the help on my GTI-R swapped 91 sentra its really quick."

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

"I appreciate you sharing this blog.Much thanks again. Really Cool."

"Thank you. This is a sign of a good business, keep up the good customer service."

"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!"