Quick view Kooks Kooks- 2005-10 Mustang GT 3v 1 3/4" Stainless Long Tube Headers 1-3/4" x 3" Stainless Steel Long Tube Headers. 2005-2010 Ford Mustang GT 4.6L 3V with Manual Transmission 304 Stainless Steel Construction 3/8" Thick Laser Cut Flanges Round Port 1-3/4" Mandrel Bent Primaries Stock Bolt Pattern Includes... MSRP: $1,145.99 Add to Cart The item has been added Compare