Intake, Header, HFC, CBE = Too Lean?

F.I. Inc. · 03-23-2010, 11:03 PM

Quote:

Originally Posted by Xan

How come some threads and also Stillen are claiming impressive gains from the G3?

The numbers are impressive with a stock exhaust! Look at the numbers, this is a stock baseline. So the Stillen intakes uncork power in a stock exhaust application. Congratulations to all of those who are running around with a stock exhaust and Stillen Gen III intakes. I know I am sounding a little hostile and for coming off that way I apologize to you ahead of time!

The bottom line (dyno proven) once you change the exhaust system you free up the almost all of the power & torque. (I said almost all) Then you do the intakes, you will see they are not doing much of anything until close to 7000 RPM's! Like I said, I have seen cases where you lose some low end and mid range. We all know usable power is 3500-6800 RPM's, not 7000-7300!

Thank you, Tony

Quote:

Originally Posted by m4a1mustang

That's over stock, so they aren't going to show those high gains on a car that's already got exhaust mods done.

I'll take the other side and say they ARE worth it if you stay N/A as they help you eek out that last bit of power for your dyno numbers and sound really cool, but even with 18 whp gains over stock, you'll never feel it. Just look at that Stillen graph... the stock air boxes are super efficient 'til nearly redline (I think the stock pull on that Stillen graph is a little misleading -- it shouldn't fall flat on it's face like that at 6.5K) so the gains you see on paper can't really be felt because they're at the very end of the rev range.

You took the words right out of my mouth...

Tony

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