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About LinkBacksI had the exhaust manifolds done on both my ‘87 Pontiac Trans am and my ‘02 Firehawk. Looks stock on the outside. Made a difference in performance in both cars. Increased exhaust flow by 19 %. Well worth it.
I had the exhaust manifolds done on both my ‘87 Pontiac Trans am and my ‘02 Firehawk. Looks stock on the outside. Made a difference in performance in both cars. Increased exhaust flow by 19 %. Well worth it.
emu roo (Oct 11, 2025)
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