Doug Thorley Headers

TOP 10 Doug Thorley Headers Shopping Results at as seen on March 20, 2019

Doug Thorley Headers thy-515-ls-c Long Tube Header for Toyota Tacoma/4Runner/Tundra/FJ Cruiser 4.0L
Doug Thorley Headers THY-716Y-SS Exhaust Header for Suzuki Samurai Tracker Sidekick
Doug Thorley Headers THY-340-C Exhaust Header for GM 5.3 LS4 4-Wheel
Doug Thorley Headers thy-310y-1-c Long Tube Header for GM Truck/SUV 4.8L, 5.3L, 6.0L,
Doug Thorley Headers THY-324Y-C Exhaust Header for GM Truck LS
Doug Thorley Headers THY-470-L-C Long Tube Exhaust Header for Nissan Xterra/Frontier/Pathfinder
Doug Thorley Headers THY-630Y-C Exhaust Header for Jeep Grand Cherokee ZJ
Doug Thorley Headers thy-309-c Exhaust Header for GM Truck/SUV 4.8L, 5.3L, 6.0L,
Doug Thorley Headers 89248 Cat-Back Exhaust System for Toyota Land Cruiser 100-Series/Lexus LX470 4.7L V8
Doug Thorley Headers thy-555y-c Exhaust Header for Toyota Truck 4Runner

Doug Thorley Headers 65% OFF | Price List

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Doug Thorley Headers Video Review

Doug Thorley Tri-Y Header Unbox, Install, and Review

Doug Thorley Headers Review

In this video, I unbox, install, and review Doug Thorley's catless tri-y headers on my 2014 GMC Sierra with the 5.3L. The header part number is THY-352Y-L-C. Coupon code below. Overall very happy with the fit, finish, and sound of the headers. Without a tune I felt slight torque increase, onc...

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