NORTON98

Do the 96-98s have weak heads...I remember hearing that from somewhere but Im not sure.

yuengling910

96-98 = Non PI (Power Improved i think) intake manifold and heads.

99-04 = PI heads and intake.

im pretty sure that's right.

DRWStanley2002

Yes that is right.

M1ke

weak meaning resisting breaking or power making? they are bad at the later

beastzilla02

yeah i wanna get PI heads and cams.. but my car is fast as **** to me at least..i used to drive a 01 sentra lol

monkeydude3

they aren't weak, they are just badly flowing.

jmmorgan82

is that a prom pic on your avatar?

GT_Bob

To say the non-pi heads are weak is a little harsh. Yes the pi heads flow better and produce about 18% more hp, but there is nothing inherently wrong with the non-pi heads.

[sm=smokin.gif]

NORTON98

You guys would mind telling me a list of benefits doing a PI swap...I might have to convince somebody and it would be nice to have some facts down...


Thanks
Mike

monkeydude3

no, it's from my g/f homecoming. But we've been to almost every school dance together



ummm benefits to a PI swap... more horsepower, more torque... that's about what you do it for. Most cases you get an increase in compression ratio so you have to run premium