Part Number: THY-560Y Product Name: 2007, 5.7L, 2/4WD, TUNDRA Description: It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! The proof is in the dyno! Our Toyota Tundra had an increase of 29hp and 46ft. lbs. of torque! List Price: $887.00 Features DRIVE: 2WD & 4WD PRIMARY/COLLECTOR: 1 5/8" - 2 1/2" Quantity:

Dyno Results