Looking to maximize exhaust flow on your C7 Corvette? Speed Engineering's 2" longtube headers are the step up from the 1-7/8" version — delivering maximum primary tube diameter for aggressive builds with supporting modifications. Mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel. Dyno proven to deliver over 25 rear-wheel horsepower over stock. Engineered with great ground clearance for lowered C7 builds.
Built from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, and full TIG-welded construction.
⚠️ Important Notes:
- Speed Engineering X-pipe kit is required for proper installation — sold separately
- Manual transmission applications will need to reuse the factory exhaust hanger for X-pipe installation
Features:
- Full 2" Port-Matched Primary Tubes — Maximum flow from cylinder head to collector for aggressive LT performance
- 3" Collector — Optimized for strong low-to-mid RPM torque
- Mandrel Bent Tubing — Consistent tube diameter through every bend; no crimping, no restriction
- CNC Machined Flanges — Precision fit at the head and collector for a leak-free seal
- 304 Natural Stainless Steel Construction — Corrosion resistant, heat tolerant, and built to last
- Great Ground Clearance for Lowered Vehicles
- Longtube Header Design — Maximum scavenging efficiency vs. shorty or mid-length headers
- Dyno Proven — 25+ RWHP gain on C7 Corvette applications
- Compatible with 6.2L LT1 and LT4 Engines
Vehicle Applications:
Chevrolet C7 Corvette — LT1/LT4 6.2L
- 2014 Chevrolet Corvette C7 — 6.2L LT1
- 2015 Chevrolet Corvette C7 — 6.2L LT1
- 2016 Chevrolet Corvette C7 — 6.2L LT1
- 2017 Chevrolet Corvette C7 — 6.2L LT1
- 2018 Chevrolet Corvette C7 — 6.2L LT1
- 2019 Chevrolet Corvette C7 — 6.2L LT1
Chevrolet C7 Corvette Z06 — LT4 6.2L
- 2015 Chevrolet Corvette C7 Z06 — 6.2L LT4
- 2016 Chevrolet Corvette C7 Z06 — 6.2L LT4
- 2017 Chevrolet Corvette C7 Z06 — 6.2L LT4
- 2018 Chevrolet Corvette C7 Z06 — 6.2L LT4
- 2019 Chevrolet Corvette C7 Z06 — 6.2L LT4
FAQ
What is the difference between these headers and the 1-7/8" C7 headers (25-1044)?
The primary tube diameter is the key difference. The 2" headers deliver maximum exhaust flow and are best suited for more aggressive builds with supporting modifications such as a cam, heads, or forced induction. The 1-7/8" headers are a strong choice for most street and performance builds across a broader RPM range.
Do I need an X-pipe kit to install these headers?
Yes. Speed Engineering's X-pipe kit is required for proper installation and is sold separately.
Does my manual transmission C7 require any special considerations for X-pipe installation?
Yes. Manual transmission applications will need to reuse the factory exhaust hanger for proper X-pipe installation.
How much horsepower do these headers add to a C7 Corvette?
Speed Engineering's 2" longtube headers are dyno proven to add over 25 rear-wheel horsepower on C7 Corvette LT1 and LT4 applications compared to stock exhaust manifolds.
Are these headers good for lowered C7 Corvettes?
Yes. These headers are engineered with great ground clearance, making them a solid choice for lowered C7 builds.
What engines are these headers compatible with?
These headers are compatible with the 6.2L LT1 found in the 2014–2019 C7 Corvette Base and Grand Sport, and the 6.2L LT4 found in the 2015–2019 C7 Corvette Z06.
What material are these headers made from?
304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.
Are these headers street legal?
No. These are race-only headers 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).
