Thread: Realistic gains to expect from an intake?

Yeah, usually 20% less than factory numbers. Drivetrain loss.
240 - 20% = roughly 180 - 190 ish. Anywhere around there really

Originally Posted by GTP131

I've "felt like" I lost some low end when I added headers with stock pulley, but gained a good chunk of top end. No dyno numbers to verify this, though.

You didn't lose any low end. You just gained more in the top end than you gained in the low end.
Headers don't lose power at any RPM.

Originally Posted by Scottydoggs

you loose boost for sure, it did gain power off the line i said, ( headers will let it melt the tires) but its no faster then stock to me. till you add a smaller pulley. butt dyno

and the intake dont add those numbers, you know that.


and thats crank HP as the dealer would post it. not to the wheels.

Pay attention you guys are saying exact opposite things here.
Headers gain 15ish peak whp... but at very high RPM the gains are even bigger.
At 6000+rpm I've seen a 30whp gain over stock without a tune or pulley.