I have an extra ITR intake manifold from some deals I've done, and nobody seems to want to buy it, even at $160. I was thinking of gasket/port/TB matching it, and maybe doing a polish while I'm in there.

Some people seemed to think polishing might actually degrade performance by reducing the fuel atomization of the stock rough finish.

Anyone have any insight, comments, or particualrly, real world experience? Should I mess with it, or are the gains so minute I should just keep trying to sell it. It's in new condition by the way.

 

From what i've read, gains can be made by port matching it to the head. I would assume that matching it to your TB would also net gains as it would reduce any bottlenecks in the air flow. As for polishing, i think that wouldn't gain anything, unless you polished the outside for bling points.

 

Anyone? Search has not yielded any very usefull info, only speculation.

I need to know quick, so I know whether I should sell my spare mani cheap, or mess around with port and/or polish. TIA