Extractors

[The Brick]

Is it worthwhile putting extractors and 2.5" exhaust on a Nissan GQ 4.2 diesel ?

Do not have enough cash or a low Km motor for turbo !!!

[big red]

i had a gq diesel with 33's and found it cruised well at 100 with extractors and a 2 1/4 system.
when i changed to a 2 1/2 system i found it had moved the power up a bit higher and it would no longer hold 5th as well at 100kmh but instead seemed happier at 110kmh which wasn't healthy for the licence.
If your running 31's go 2 1/2.
if your running 33's go 2 1/4.
the extractors did not make as much difference on the gq as it did on my 60series but expect around 10 percent more power. [ seat of the pants guesstimate ]
shane