Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!" 10mm Spark Plug Wires (8 pc. Set). Grey with Black Boots. 1999-2014 GEN III/IV LS Based 4.8L/5.3L/6.0L/6.2L Truck/SUV/Van Engines with Coil Packs in OEM location. 10mm Spark Plug Wires (8 pc. Set). Grey with Black Boots. 1999-2014 GEN III/IV LS Based 4.8L/5.3L/6.0L/6.2L Truck/SUV/Van Engines with Coil Packs in OEM location. 10mm High temp Silicone insulation help these wires withstand the extra heat of High Performance builds. High Temp Silicone boots are angled 90 degrees at the coil pack end, and 45 degrees at the Spark Plug end to maximize clearance to headers.
