Chevy Colorado 5.3L Doug Thorley Headers long tubes

We've done it again with or new 5.3L 1 3/4 long tube headers! These well built headers are easy to install and are built for even the most demanding enthusiast. We seen a consistent 20+ hp/trq gain throughout the entire power band so whatever you like doing with your 'rado, we'll have you covered. Enjoy!!

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