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Originally Posted by Patton
I wonder how precise you have to be when porting,... I know anybody can polish their own stuff, just get a dremmel and a nice accessory kit with bendable arms and such. But I wonder if porting is feasible for your average gear head.
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You basically just explained why it's expensive. A person has to develop a product first, then sell it. So the fewer you sell, the more R&D cost you have to put on each unit. It's not like it's a bunch of money-grubbers selling this stuff.
I'm sure you could port your own stuff if you knew what you were doing. One thing is the risk and cost associated with that risk. A new TB from GM is about $1,900, a plenum is $1,300. At least the IH's aren't so bad. So if you mess one up, you aren't going to save much money. Compare that to having Marc port those for $2,800 including a chip for your car and the labor, and it's about how much risk are you willing to absorb.
For headers, I guess it seemed to me that $1000 is kind of par for the course for a lot of cars. 4-banger headers seem to be around $400 or so, multiply that by 2 for a V8. I dunno... It's not cheap, for sure, but at the same time it's not way out there.
Just my thoughts. Of course I wish stuff were cheaper too, though. Especially regular replacement parts. Some of those prices are insane.