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Product Summary

Universal Fit, Header-Back Exhaust System Type, Natural

  • Cut out the middle man and build the perfect automotive exhaust system your project deserves!
  • This universal kit includes all the necessary 2-1/4" exhaust pipe bends and straights to allow you to build your own custom exhaust system
  • Premium 16-gauge steel tubing provides long lasting performance
  • 2 1/4" mandrel bent tubing is full size throughout the bend for maximum flow and increased power
  • Includes 4 each: 45 degree bends, 90 degree bends, 180 degree bends, and 46" inch straight pipe exhaust lengths
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Key Specs

MFG. Part #91013822
Exhaust System TypeHeader-Back
Single or DualDual
Exhaust Tubing Diameter2-1/4 Inch
Exhaust System Kit TypeDIY Universal
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91013822 Details

  • 2-1/4-inch 16-gauge mild steel tubing with .065-inch wall thickness for easier welding
  • Mandrel bent tubing maintains inside diameter throughout exhaust pipe flow path
  • All tubing can be cut and easily welded at any bend radius due to mandrel bending process
  • Oil coating applied to prevent corrosion after manufacture that delivers clean, ready to weld tubing
  • Once cut and welded it is recommended to use high-heat paint or ceramic coating to protect exhaust
  • Each tubing piece includes an expanded end for easy slip-fit installation
  • Complete universal dual exhaust kit includes 16 pieces of tubing to build a complete custom exhaust system
  • Dual exhaust kit does not include mufflers, clamps, hangers, or any finished tips
  • Bent exhaust tubing features a 3-3/8-inch bend radius on all pieces

Design Your Own Exhaust System with Our Complete Header Back Exhaust Kits

Many builders look at the exhaust portion of a project build with skepticism and disdain. It is normally one of those aspects of a project where you know it is going to entail delivering your project vehicle to an exhaust fabricator and having a complete header to tailpipe custom exhaust system built at great expense. It is even more fun when you do not own a truck and trailer to transport said vehicle yourself too! However, we are here to tell you that you can indeed fabricate your own custom exhaust right in your home garage or workshop with ease using one of our complete dual exhaust pipe kits we offer here at Speedway Motors. All it takes is a welder, something to measure and cut the piping with, and a little bit of exhaust pipe system routing forethought to accomplish.

Heavy Wall 16-Gauge Tubing for Easy Welding and Fabrication

We start by spec’ing .065-inch thick 16-gauge mild steel tubing for our mandrel bent exhaust pipe kits. This steel is easier to weld by far when compared to standard 18-gauge steel normally used for exhaust tubing. The thicker gauge material provides “forgiveness” when welding if your welding machine settings are not spot on, making it easier for novices with basic 110-volt MIG welders to weld up the perfect custom exhaust system. We provide four 46-inch lengths of straight pipe for the main exhaust pipe run along with four lengths of each bend type: 90-degree, 45-degree, and 180-degree U-bends. These bends allow you to fabricate the optimum dual exhaust system routing around crossmembers and over your rear axle simply by measuring, cutting, and welding the bend sections as required.

Just Add Mufflers and Hangers to Complete Your Exhaust

Our mild steel universal dual exhaust pipe kits are available with or without our welded steel 2-chamber performance mufflers. This kit utilizes 2-1/4-inch exhaust tubing and ships sans muffler assemblies so that you can choose the exact muffler to fit your chassis and desired sound and performance levels. You can find this 2.25" exhaust pipe kit with mufflers along with exhaust installation accessories including hangers and exhaust tips on our site. Be sure to have a quick read of our muffler buyer’s guide over on our Toolbox page to aid in choosing the right muffler for your project.

Extra Exhaust Tubing is Just a Call or Click Away

Sometimes we measure twice, cut once, then cut again, and still come up with the short end of the stick, or in this case, exhaust pipe. Have no fear, Speedway Motors offers individual replacement angle tubing and additional lengths of straight tubing in case you have a project with a long wheelbase like a station wagon, panel van, or other unique scenario. If you know what you need you can order these along with your hot rod DIY exhaust kit, otherwise, know these parts are ready to order to get you fixed back up and your exhaust project finished in no time if you make a mistake with your exhaust fabrication.

45-degree Mild Steel Bend

90-degree Mild Steel Bend

180-degree Mild Steel Bend

46-inch Length Mild Steel Straight

Dual Exhaust H-Pipe Balance Tube

Extra Exhaust Tubing is Just a Call or Click Away

Sometimes we measure twice, cut once, then cut again, and still come up with the short end of the stick, or in this case, exhaust pipe. Have no fear, Speedway Motors offers individual replacement angle tubing and additional lengths of straight tubing in case you have a project with a long wheelbase like a station wagon, panel van, or other unique scenario. If you know what you need you can order these along with your hot rod DIY exhaust kit, otherwise, know these parts are ready to order to get you fixed back up and your exhaust project finished in no time if you make a mistake with your exhaust fabrication.

45-degree Mild Steel Bend

90-degree Mild Steel Bend

180-degree Mild Steel Bend

46-inch Length Mild Steel Straight

Dual Exhaust H-Pipe Balance Tube

Speedway Motors 91013822 Specifications

KEY SPECS
MFG. Part #91013822
BrandSpeedway Motors
Exhaust System TypeHeader-Back
Single or DualDual
Exhaust Tubing Diameter2-1/4 Inch
Exhaust System Kit TypeDIY Universal
GENERAL
Muffler(s) IncludedNo
Exhaust Tip IncludedNo
Exhaust System MaterialMild Steel
Exhaust System FinishNatural
Exhaust Pipe ColorNatural
Mount TypeUniversal
Tailpipe Diameter2.25"
Mandrel BentYes
Wall Thickness.065"
Catalytic Converter(s) IncludedNo
Hardware IncludedNo
Sold in QuantityKit
NotesNo clamps or hangers are included.
Material TypeMild Steel

Ratings & Reviews

4.8

110 Reviews

Overall Assessment

Customers highly praised the product, noted for its quality, practicality, and value for money. Many found the kit provided ample, well-made parts that facilitated an easy, professional, custom exhaust build, with clean, wrinkle-free bends. The kit's versatile content received widespread recognition with ample parts for any configuration. Its usability is praised, with users highlighting the kit's ease of assembly and welding due to high-quality materials and the right wall thickness. The product's cost-effectiveness is also highly recommended compared to competitors. Being non-aluminized, it was considered easy to weld. Though not galvanized, its corrosion protection, a light coating of oil, proved sufficient for many users. Customers often stated they would purchase the product again.

4.8

110 reviews

5

95

4

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Most Liked Positive Review

5.0

Perfect mandrel bends

The bends in this kit are beautiful. I used all four 45's and 90's and two of the 180 U bends to create the secondary exhaust on my 32' project. I didn't use the slip hubs, I butt welded the joints together for a smoother look. Worth the price any day. I WILL use these again.

Most Liked Negative Review

1.0

THROW IN SCRAP PILE

Bought a set a couple of years ago and loved it, pipes were heavy and well made. Bought another set this year pipes are now much lighter and undersized by 3/64" they don't fit tightly in the mufflers and when I tightened the band clamps they didn't tighten around the pipes I could pull the pipes right out. They took a nice kit and cheapened them up.

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I would buy this exhaust system again it is a excellent

5.0

2 months ago

Butthead

Kansas City mo

Verified

I used it on my 1936 ford it worked excellent

Would Recommend

Exhaust parts

5.0

2 months ago

JT

Denver

Verified

I would purchase this again if or when I have another project to work on

Would Recommend

everything you need

5.0

3 months ago

Dart 78

south central Pa

Verified

with the exception of mufflers which I also got from Speedway-this kit had everything I needed to lay out my dual exhaust for a 302 ford in my 1955 Austin Healey 100-4

Would Recommend

I would use again.

5.0

6 months ago

PITA

Valentine

Verified

Made quick work for dual exhaust. Just a little fab work so it looks just right which was to be expected. Great value compared to others used.

Would Recommend

Mandrel bend exhaust kit

5.0

a year ago

Scott

Buffalo ny

Verified

All pieces came individually wrapped and coated with oil , easy to cut and weld together. Used for dual exhaust on a 51 f1 pick up

Would Recommend

Saved a lot of money

5.0

a year ago

JD

Gatineau Quebec

Verified

Customized to fit Model A

Would Recommend

why send it out? I can weld it up .

5.0

2 years ago

Horses and hot rods ranch

Argyle NY

Verified

I added tailpipes to an existing dual exhaust, was nasty to drive smelling fumes. 51 Pontiac with a 454.

Would Recommend

Perfect kit with many options

5.0

2 years ago

Travis

Eldridge, Ia

Verified

I use to build exhaust for my ratvrod truck, fist time doing own exhaust, kit has enough pieces to make many angles. It would be nice if it came with hangers and clamps but for the price it's a great kit.

Would Recommend

Yes , building another truck soon and will be ordering again

5.0

2 years ago

1946lurch

Lomita ca

Verified

Great kit , plenty of bends to do a nice professional job, looks better than the corner muffler shop

Would Recommend

Exhaust

4.0

2 years ago

Dunc

Columbus, Texas

Verified

Installing a SBF in a 32 ford PU has a custom frame and a 6 inch extended fiberglass cab. So had plenty of parts to fab an exhaust. Parts were clean and not damaged so went well

Would Recommend

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