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Summit Racing® Universal Rod Builder Exhaust Kits SUM-670146

Summit Racing SUM-670146 - Summit Racing® Universal Rod Builder Exhaust Kits
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Exhaust Pipe Kit, Header-Back, Weld-Up, Steel, Aluminized, 2.5 in. Diameter, Universal, Kit

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Brand: Summit Racing

Manufacturer's Part Number: SUM-670146

Part Type: Exhaust Systems

Product Line: Summit Racing® Universal Rod Builder Exhaust Kits

Summit Racing Part Number: SUM-670146

UPC: 190861032668

System Material: Steel

System Style: Header-back

Exit Location: Split rear/Split side

System Finish: Aluminized

Catalytic Converter(s) Included: No

Intermediate Pipe Diameter (in): 2.500 in.

Muffler Included: No

Exhaust Type: Dual

Hardware Included: No

Inlet Quantity: Two

Tip Included: No

Quantity: Sold as a kit.

Notes: Due to variations in different manufacturers headers, modifications to the length and or angles of the intermediate pipes may be required when connecting to the header collectors.

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

These Summit Racing® universal rod builder exhaust kits come complete with everything that you need to construct the custom exhaust system you've been planning. You can cut and weld to your heart's content. These kits have it all!

The Summit Racing® universal rod builder exhaust kits feature:

* Four 4 ft. long straight sections of tubing
* Four 180 degree mandrel bends
* Four 90 degree mandrel bends
* Four 45 degree mandrel bends
* Hardware and mufflers are not included


Questions & Answers Ask a Product Question

What is the bend radius of the u-bend (180 deg) pipes? Or, at least, what's the distance between? Has anyone used these 180 bends for the over the axle hoop on their custom builds?

Asked by JOHN A on April 13, 2018


Thank you for your question. The Summit 670146 Universal Rod Builder Exhaust Kits include U-bends which have a 3.75 in. centerline bend radius and a distance of 5 in. in between the two legs.

Summit RacingSummit Racing Answer - April 16, 2018

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Has anyone used this setup when designing their turbo charge piping etc? Cold side is 2.5" which this kit would be perfect. Thanks

Asked by DEREK S on June 30, 2018


Yes, it will work well to plumb your turbo just plan carefully and keep welding to a minimum.

JOHN from SC answered on June 30, 2018

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What’s the thickness of the pipes

Asked by JAMES on January 02, 2018


16 gauge. Mine showed up today. Heavy duty

SHAWN from IA answered on January 02, 2018

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what gauge tube is this?
I see there is a version that is cheaper and 16ga, I can assume this is thicker?

Asked by EDWARD on October 23, 2016


16ga is the correct size it is also aluminized steel not mild steel. used this kit to replace part of the exhaust on my 1979 corvette after replacing transmission with a 700r, worked great for me !

GERALD from MS answered on October 24, 2016

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Some parts are not legal for use in California or other states with similar laws / regulations

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