Should i dyno my GU 4.2T after fitting new 3inch exhaust

[Bobo63]

Hi guys,
I'm about fit a new 3 inch exhaust to my GU 4.2 T Cab Chassis and was wondering if i should it dyno?

[nissannewby]

You don't need to dyno it mate unless you want to tune it and get a little more from it.

[Bobo63]

You don't need to dyno it mate unless you want to tune it and get a little more from it.

Thankyou! I'm trying to get a bit more economy not looking for anymore power!