My sig shows my specs and I want to change to a true dual exhaust setup for my car. I am looking at the eelbrock headers since they are cheaper than the SLP headers, but am wondering if I should choose the headers for the 1989-92 camaros with two cats. I dont want hte Y-pipe so i can make the duals, and am wonderin if u guys think this is the best choice to set up the duals. Also, what size piping for the 305. I wnat a boost in HP's but dont want to lose too much torque?

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1986 Metallic Blue IROC-Z
80k miles, 305 TPI
Mods:
-Edelbrock Hi-Flow baseplate
-Dynomax Cat-back
-gutted MAF
-K&N's
-airfoil
-shiftkit

Also, is the nickel platin anygood, or will it turn some ugly color?