Stainless Works 2004-07 Cadillac CTSV Headers 1-3/4in Primaries 3in Collectors CTSVH

Stainless Works Headers & Manifolds CTSVH 2004-07 Cadillac CTSV headers. 1 3/4" primary tubes with 3" OD collectors-headers only. Long tube design makes great power and mid range torque. 3/8" s/s CNC laser cut flanges are port matched to the cylinder head for optimal flow and maxium performance. Fits to Stainless Works exhaust but will require some cutting, welding, and fabricating to connect to the stock or aftermarket exhaust systems. Tested at Strope Speed Shop, our stock 2005 CTS-V with Stainless Works headers and catback with a tune made 53 HP and 47 TQ to the wheels over stock!!!! 3/8" Flanges, 1-7/8" Primaries, Merge Collector 2004-07 Cadillac CTSV headers. 1 3/4" primary tubes with 3" OD collectors-headers only. 3/8" stainless steel CNC laser cut flanges are port matched to the cylinder head for optimal flow and maxium performance. Exhaust System