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
"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!"
http://crorkzz.com/
"Im thankful for the blog post.Really looking forward to read more. Awesome."
Customer Email
"Thanks for the great customer service! I'm planning on ordering from you again soon."
Customer Email
"WONDERFUL! Shipping is blinding fast! The site is great because there is an automatic inventory counter to tell you what is in or out of stock. Great site! Ordered from them several times without a hitch at all. And not to mention that their prices are CHEAP! "
Customer Email
"Thank you for your continued excellent service"
Customer Email
"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."
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.