Complete your 1963–1972 C10 LS or LT swap exhaust build with Speed Engineering's true dual axle exit exhaust system. Built from 3" mandrel bent 304 natural stainless steel with a true dual X-pipe design and insulated bullet style blow-through mufflers — a purpose-built exhaust system designed specifically for C10 LS and LT swap builds using Speed Engineering's C10 longtube headers.
⚠️ Important Notes:
- Designed to work with Speed Engineering LS & LT C10 1-3/4" and 1-7/8" longtube swap headers only — specifically compatible with part numbers 25-1025, 25-1026, and 25-1058. NOT compatible with SBC or BBC headers
- Factory crossmember — if using the factory crossmember, holes will need to be cut for the exhaust to pass through. This system is designed to work with the Speed Engineering trailing arm crossmember
6L80 Transmission — Kit was designed with a 6L80 transmission. Modifications might be required with other transmissions. 4L60 will require shorting and lengthening to the system.
- Kit will need to be extended roughly 12" in length to work on long bed applications.
Features:
- 3" Mandrel Bent Tubing — Consistent diameter throughout for maximum exhaust flow
- True Dual X-Pipe Design — Balances exhaust pulses between banks for improved tone and mid-range power
- Insulated Bullet Style Blow-Through Mufflers — Aggressive exhaust tone with added thermal insulation
- Axle Exit Design — Clean, tucked exit just in front of the rear axle on both sides
- Exhaust Hangers Included — Ready to install
- 3" Stainless Band Clamps Included
- 304 Natural Stainless Steel Construction — Corrosion resistant, heat tolerant, and built to last
- Compatible with LS & LT Swap Applications
- V8 Engines Only
- Dyno Proven
Vehicle Applications:
Note: For use with Speed Engineering LS & LT C10 longtube swap headers only (25-1025, 25-1026, 25-1058). Not compatible with SBC or BBC headers.
Chevrolet C10 Pickup (RWD) — LS & LT Swap
- 1963 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1964 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1965 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1966 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1967 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1968 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1969 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1970 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1971 Chevrolet C10 Pickup (RWD) — LS/LT Swap
- 1972 Chevrolet C10 Pickup (RWD) — LS/LT Swap
FAQ
What headers does this exhaust system work with?
This system is designed to work exclusively with Speed Engineering LS and LT C10 1-3/4" and 1-7/8" longtube conversion swap headers — specifically part numbers 25-1025, 25-1026, and 25-1058. It is not compatible with SBC or BBC headers.
Will this system work with my factory crossmember?
If using the factory crossmember, holes will need to be cut for the exhaust pipes to pass through. This system is designed to work with the Speed Engineering trailing arm crossmember for a clean, no-cut installation.
Where does the exhaust exit on this system?
This system features an axle exit design with the exhaust exiting just in front of the rear axle on both sides for a clean, tucked appearance.
What mufflers are included?
This system uses insulated bullet style blow-through mufflers for an aggressive exhaust tone with straight-through flow.
Are hangers included?
Yes. Exhaust hangers are included with the system.
What size tubing does this system use?
All tubing is 3" diameter, mandrel bent for consistent flow throughout. 3" stainless band clamps are included.
What material is this exhaust system made from?
304 natural stainless steel with mandrel-bent tubing and TIG-welded construction.
Is this exhaust system street legal?
No. This is a race-only exhaust system intended for closed-course competition use only, designed to pair with Speed Engineering's race-only longtube swap headers. 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).
