[QUOTE=Cspence;77141485]After seeing things firsthand (Gaskets and manifolds) and how much material I removed , I think everyone is crazy not to do this....seriously, it doesn't take a rocket scientist to see that the stock exhaust manifold runners inhibit flow. Will it yield major gains, no, but I would bet my car that it makes more power than it did before and it will sound significantly better. I’d say it’s well worth the cost (
verb (used with object)
1. to restrain, hinder, arrest, or check (an action, impulse, etc.).
I said they would not yield MAJOR gains, say like 30 hp. I bet one could see 3-5 hp from doing this....noticable, probably not, but thats not why I'm doing it. So my statements do make sense. Will the exhaust be less turbulent resulting in a smoother less raspy sound, more than likely. I dont know how you can look at those pictures and tell me that there is no point This all said, your entitled to your own opinion as am I
PS- Your straw theory would hold true for porting a head as well right...
Last edited by Cspence; 04-29-2012 at 12:41 AM.
Porting mine as we speak to go along with my ram horn manifold on my turbo build.
I'll say this, hogging out that much material that was blocking the ports before definitely won't HURT anything. The gains will be minimal, but that's how mods started in the first place. A few HP here, a couple MPG there, whatever. It's been shown that everything on the exhaust side is a restrictive mess, so any improvement that can be made is a check in the W column.