oppinion on JBA headers
Strictly for a relatively "stock" setup... they are only 1-5/8" headers to begin with, and they are a "step" design, meaning the first couple inches of each primary is only 1-1/2" diameter, and then they add a weld bead to the port, to act as an "anti-reversion" baffle. I found they were great on low end torque, but really strangled the engine on the top end, and that's when it was a simple "bolt-on" setup.
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colts0455
LT1 Based Engine Tech
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Jul 28, 2015 11:28 PM



