The factory exhaust manifolds on your 2nd Gen CTS-V are holding back your supercharged LSA. Speed Engineering's 2" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock.
Built from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, and full TIG-welded construction — engineered to fit right and built to last.
⚠️ Important: Speed Engineering's X-pipe kit is required for proper installation of these headers. The X-pipe is natural stainless steel construction.
Features:
- Full 2" Port-Matched Primary Tubes — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging
- 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
- Longtube Header Design — Maximum scavenging efficiency vs. shorty or mid-length headers
- Dyno Proven — 25+ RWHP gain on LSA applications
- Compatible with 6.2L LSA Supercharged Engines
Vehicle Applications:
Cadillac CTS-V — LSA 6.2L Supercharged
- 2009 Cadillac CTS-V — 6.2L LSA
- 2010 Cadillac CTS-V — 6.2L LSA
- 2011 Cadillac CTS-V — 6.2L LSA
- 2012 Cadillac CTS-V — 6.2L LSA
- 2013 Cadillac CTS-V — 6.2L LSA
- 2014 Cadillac CTS-V — 6.2L LSA
- 2015 Cadillac CTS-V — 6.2L LSA
FAQ
How much horsepower do these headers add to a 2nd Gen CTS-V?
Speed Engineering's 2" longtube headers are dyno proven to add over 25 rear-wheel horsepower on LSA equipped 2009–2015 Cadillac CTS-V applications compared to stock exhaust manifolds.
Do I need any additional parts to install these headers?
Yes. Speed Engineering's X-pipe kit is required for proper installation of these headers. The X-pipe is natural stainless steel construction and is sold separately.
What engines are these headers compatible with?
These headers are compatible with the 6.2L LSA supercharged engine found in 2009–2015 Cadillac CTS-V models.
What size are the primary tubes?
These headers feature full 2" port-matched primary tubes with a 3" collector.
What material are these headers made from?
304 natural stainless steel with full TIG-welded construction and CNC-machined flanges for a precise, durable, leak-free fit.
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).