Whoops! We didn't recognize that URL.
Please use the Search box above or try our navigation menus!
Celebrating 20 years of selling the highest quality parts at the lowest prices. Guaranteed.
What Our Customers Say
Customer Email
"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 "
Customer Email
"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!"
Dominick
"Thanks for providing the awesome service as usual! On Oct 28, 2014"
Customer Email
"Just wanted to drop you a line to say "thank you for my order".. I recieved it today , and I am very impressed with the quality of the hoses .. Man they are 100% super !! Great Quality!!!"
Customer Email
"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."
Customer Email
"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."
1.5" Parts
See More
1.625" Parts
See More
1.75" Parts
See More
2.0" Parts
See More
2.25" Parts
See More
2.5" Parts
See More
2.75" Parts
See More
3.0" Parts
See More
3.5" Parts
See More
4.0" + Parts
See More
Schedule 10/40
See More
Header Wrap
See More
Silicone Couplers
See More
Air Filters, Tools
See More
AN Fittings
See More
Aluminum Radiators
See More
Pumps, Fans, Gauges
See More
Clamps
See More
Aluminum Intercoolers
See More
Blowoff Valves
See MoreThanks for visiting! Here's a quick checklist to help you make sure you're getting the right pipes for your installation.
- Make sure your pipes have mandrel bends!
Our aluminum bends and stainless steel bends all have mandrel bends*, which are far superior to the press bends that some retailers sell. Mandrel bends maintain a uniform inner diameter through the bend, unlike press bends which are easier to manufacture and get smaller in the bend. This means that mandrel bends flow better and can be cut and welded on the bends. - Make sure your pipes look great!
Our aluminum pipes and stainless steel pipes have an incredible mirror-polished finish*. A lot of installers cut corners here, but why bother when our prices are so low for show quality products? - Make sure your pipes are the right size!
Our aluminum pipes and stainless steel pipes are listed by outer diameter*, as is typical in automotive intake, exhaust, and other piping systems. - Make sure your pipes are the correct material!
Our aluminum pipes are 6061-T grade*, with good weldability, machinability, corrosion resistance and light weight. Our stainless steel pipes are 304 Stainless Steel*, with excellent rust resistance and easy welding to many existing components.
*Information refers to our main product line - some products may vary. Please check our product descriptions for full details.