Speed Engineering's universal 3" exhaust builder kit gives you mandrel bent 304 natural stainless tubing in a slip fit configuration with an X-pipe included — everything you need to start laying out a custom exhaust system without having to source individual pieces.
⚠️ Important: This is a universal build-your-own kit and is not designed for use with any specific Speed Engineering header or pipe product. Fabrication will be required.
Features:
- 3" Mandrel Bent Tubing — Consistent diameter throughout for maximum exhaust flow
- Slip Fit Construction — Allows for easy positioning and fitment during custom exhaust fabrication
- X-Pipe Included — Crossover pipe included in the kit
- Natural Steel Band Clamps Included
- 304 Natural Stainless Steel Construction — Corrosion resistant and built to last
- Universal Fit — For custom LS swap exhaust builds
FAQ
Is this kit designed to work with specific Speed Engineering headers?
No. This is a universal build-your-own exhaust kit and is not designed for use with any specific Speed Engineering header or pipe product. It is intended for custom exhaust fabrication on LS engine swap builds.
What size tubing is included in this kit?
All tubing is 3" diameter, mandrel bent for consistent flow throughout.
What is slip fit construction?
Slip fit means the tubing sections slide into each other, allowing you to adjust positioning and routing during fabrication before final clamping or welding.
Does this kit include an X-pipe?
Yes. An X-pipe crossover is included in the kit.
What material is this kit made from?
304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. Natural steel band clamps are included.
Is this kit street legal?
No. This is a race-only product with no catalytic converter provisions, intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).
⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
