My OBX header install.
Not sure. Maybe it just flows a lot better now and needs more fuel.
It wasn't lean in a bad way. He said it just would have made more HP if we could have richened it up a bit.
I don't know much about it really.
I don't really think I could be maxing out my stock fuel system so I'm not sure why it would be leaner now. Maybe his gauges were just reading different.
Someone else on here probably has an idea.
It wasn't lean in a bad way. He said it just would have made more HP if we could have richened it up a bit.
I don't know much about it really.
I don't really think I could be maxing out my stock fuel system so I'm not sure why it would be leaner now. Maybe his gauges were just reading different.

Someone else on here probably has an idea.
I've always wondered how you say, and what the heck your screen name meant. I always said it in my head as maybe he's saying "If you're in.." really country sounding.. How do you pronounce it? "Ferring"? "Furing"? Just curious. Congrats getting them installed. Get that thing tuned!
I've always wondered how you say, and what the heck your screen name meant. I always said it in my head as maybe he's saying "If you're in.." really country sounding.. How do you pronounce it? "Ferring"? "Furing"? Just curious. Congrats getting them installed. Get that thing tuned!

yea this was the first Forum I joined so I just used my username that I log into my work stuff with.
It's Fe ur ing ....... It's of German ancestory and the first part is pronounced kind of like how you say Furor. As in - The Fuhrer, Adolf Hitler.

I'm not sure if your following my plans but I'm not getting it tuned till I get my supercharger installed.
My mods are listed in my sig.


I'll search tomorrow to see what your talking about. I've had a rough week.

Oh and I'll also try to get some better exhaust vids.
Just got back from the dyno. I didn't gain much with the headers but I didn't really expect to without a custom tune for them.
I only gained about 6hp and 6ft lbs of torque.
I'm not sure why he printed this one off. One run he got 220 hp out of it.
I've video'd it and I'll post that up too.
Old Dyno without headers

New Dyno with headers

I only gained about 6hp and 6ft lbs of torque.
I'm not sure why he printed this one off. One run he got 220 hp out of it.
I've video'd it and I'll post that up too.
Old Dyno without headers

New Dyno with headers

Look at 3000rpm for example...
Before headers: 140rwhp 240rwtq
After headers: 160rwhp 280rwtq!
4500RPM:
Before: 210rwhp 245rwtq
After: 220rwhp 250rwtq
Never look at peak numbers, look at the curve....
Last edited by FATHERFORD; Dec 16, 2009 at 10:21 AM.
Yea your right FF.
i wished he would have had the scale set up the same on both runs so it would have been easier to compare.
I'll make sure it is set up the same when I go back with the supercharger.
i wished he would have had the scale set up the same on both runs so it would have been easier to compare.
I'll make sure it is set up the same when I go back with the supercharger.






