The LG SUPER PRO headers have true competition merge collectors rather than a stamped collector - the highest quality fabricated merge collector helps the top end power curve and lifts the low end torque.
LG suggests 1 3/4" headers for mild applications but on an all-out car (or any Z06/ZR1), the 1 7/8" headers will not be beat. << Click Here for 1 7/8" SuperPro Headers! >>