Granatelli oval exhaust systems provide high-flow performance with a low-profile design that increases ground clearance, reduces scraping, and delivers a clean, aggressive exhaust tone—ideal for lowered vehicles, hot rods, and high-performance street or race builds.
3" Oval Stainless Steel Tubing for Low-Clearance Exhaust
Round 3" pipe hangs low on a lowered car, an air-ride build or a hot rod with a tight tunnel. Granatelli Motor Sports 3" oval stainless steel tubing keeps a 3-inch exhaust path in a flatter profile, roughly 2.2" x 3.45" outside, so the system tucks up and gains about three-quarters of an inch of ground clearance compared with round tubing, depending on the install. It is the oval tube stainless steel builders use when a full round system will not fit, and the parts are designed to work together as one family.
What's in the Oval Exhaust Line
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Straight oval tubing: 313535, 5 ft straight section
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Oval bends: 313536 45° horizontal, 313537 90° horizontal, 313538 45° vertical and 313539 90° vertical
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Round-to-oval adapters: 313531 weld-in, 313532 with V-band end, 313533 V-band both ends with clamp, and 313534 with 3-bolt flange
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Finishing parts: 313541 polished stainless oval muffler, 313540 oval 45° turndown and 302300 oval stainless exhaust flange
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Oval electric exhaust cutouts: 313530 single and 313530D dual, stainless weld-in. See all oval exhaust cutouts
Planning a Stainless Steel Oval Exhaust
Horizontal bends turn the pipe side to side with the flat face down. Vertical bends step it up or down over a crossmember or axle. Mock up the full route with the car at ride height, mark each bend's orientation before tacking, and use a round-to-oval adapter wherever the system meets round headers, a round muffler or a cutout.
Oval Exhaust FAQ
How much ground clearance does 3" oval tubing gain?
About 0.75" compared with comparable 3" round tubing, depending on how it is installed.
What are the dimensions of the 3" oval tubing?
The profile is approximately 2.2" x 3.45" outside. The 313536 bend, for example, is 304 stainless, 16 gauge (.060") wall, with a 4.50" centerline radius.
Can I connect oval tubing to my round 3" exhaust?
Yes, with a round-to-oval adapter. Pick the weld-in, V-band or 3-bolt flange version that matches how you want the joint to come apart.
Can I run an exhaust cutout on an oval system?
Yes. Our 3" oval electric exhaust cutouts are built for it, in single and dual weld-in kits.
More answers on dimensions, adapters and welding are in the Oval Exhaust Tubing FAQ. See an oval system go together in Classic Truck Performance: Building a C10 Oval Exhaust With Granatelli Motor Sports Tubing.
