Connecting your Speed Engineering longtube headers to the axle-back on your C7 Corvette? This X-pipe kit is the crossover that completes the system. Built from 3" mandrel bent 304 natural stainless steel with TIG-welded construction and 3" band clamps included — designed specifically for Speed Engineering longtube headers. Covers all C7 Corvette LT1 and LT4 applications.
⚠️ Important Notes:
- This X-pipe is designed for Speed Engineering longtube headers only — it will NOT work as a factory exhaust manifold replacement
- Manual transmission applications need to reuse the factory exhaust hanger for proper X-pipe installation
Features:
- 3" Mandrel Bent Tubing — Consistent diameter throughout for maximum exhaust flow
- True X-Pipe Design — Balances exhaust pulses between banks for improved tone and mid-range power
- 3" Band Clamps Included
- 304 Natural Stainless Steel Construction — Corrosion resistant, heat tolerant, and built to last
- Compatible with 6.2L LT1 and LT4 Engines
- Dyno Proven
Vehicle Applications:
Chevrolet C7 Corvette — LT1 6.2L
- 2014 Chevrolet Corvette C7 (RWD) — 6.2L LT1
- 2015 Chevrolet Corvette C7 (RWD) — 6.2L LT1
- 2016 Chevrolet Corvette C7 (RWD) — 6.2L LT1
- 2017 Chevrolet Corvette C7 (RWD) — 6.2L LT1
- 2018 Chevrolet Corvette C7 (RWD) — 6.2L LT1
- 2019 Chevrolet Corvette C7 (RWD) — 6.2L LT1
Chevrolet C7 Corvette Z06 — LT4 6.2L
- 2015 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4
- 2016 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4
- 2017 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4
- 2018 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4
- 2019 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4
FAQ
Will this X-pipe work with factory exhaust manifolds?
No. This X-pipe is designed for use with Speed Engineering longtube headers only and will not work as a factory exhaust manifold replacement.
Do manual transmission cars need anything special for installation?
Yes. Manual transmission applications need to reuse the factory exhaust hanger for proper X-pipe installation.
Does this X-pipe pair with the Speed Engineering axle-back exhaust system (25-1081)?
Yes. This X-pipe connects the longtube headers to the axle-back exhaust system, which can be the factory exhaust (with included reducers) or the Speed Engineering true dual axle-back system.
What size tubing does this X-pipe use?
3" diameter, mandrel bent for consistent flow throughout. Band clamps are included for installation.
What material is this X-pipe made from?
304 natural stainless steel with mandrel-bent tubing and TIG-welded construction.
Is this X-pipe street legal?
No. This is a race-only product 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).
