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
Frequently Asked Questions:
Q: 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.
Q: 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.
Q: 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.
Q: What size are the primary tubes? These headers feature full 2" port-matched primary tubes with a 3" collector.
Q: 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.
Q: 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).