Speed Engineering Cadillac CTS-V 1 7/8" Longtube Headers 2016-2019
Speed Engineering Cadillac CTS-V longtube headers are built from natural-finish 304 stainless steel with mandrel-bent tubing, TIG-welded construction, CNC-machined flanges, and 3-inch collectors. The 1 7/8" port-matched primary design fits 2016-2019 Cadillac CTS-V models with the supercharged 6.2L LT4 engine.
- 1 7/8" port-matched primaries
- 304 stainless-steel construction
- Longtube design
- 3-inch collectors
- LT4 6.2L application
Recommended upgrades: Select the matching 25-1047 3-inch connection pipe, SMG Gen V LT MLS gaskets, SMG ceramic plug wires, and the correct O2 sensor extensions. Our 9070C ceramic wires resist direct header heat and are the only plug wires used on SMG in-house header builds because ordinary rubber boots can melt against close header tubes. O2 extensions are supplied in the quantity required for this application.
Fitment: 2016-2019 Cadillac CTS-V.
Warning: This race-only product is manufactured and sold for competition vehicles and is not legal for use on public roads where prohibited by emissions law.
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.