4.8 owners...

[smicko]

We'll I'm guessing Its gutless because Its lean as a mofo. Blocked injectors or fuel filter.
Before spending money on exhaust, change fuel filters, and have the fuel system checked over.
Get a tune and.you should have a power house..

Sent from my C6603 using Motorculture mobile app

Kallen, as I said I'm pretty happy with it's power, I'm sure I can wring more out of it if I want to, but I'm happy with it as is. It's got far more grunt than I can make use of and retain my licence. If you're familiar with the PVA mod you'll understand that all it does is allow the motor to breathe better under 2000rpm, making the auto more responsive at lower revs (and supposedly better economy in the auto which I find hard to swallow, given my current figures). I'm not after a fire breather, I'm chasing a tourer that is offroad capable and returning the best mileage I can get.

I've been looking for a 4.8 for a couple of months and have driven more than 10 of them ranging from '02 through '10 and from 16-48 grand. This one is a cherry and runs the best out of all of them, it is also the ONLY one I've driven that hasn't already had exhaust mods done, hence my query.

I've run it past my mechanic who called it as one of the best he's ever seen. I also stated that the centre muffler is knackered, perhaps I should extrapolate that a bit to say it has a hole in it and whilst I'm looking at replacing that I may as well chuck on headers and a full system, IF ITS NOT GOING TO SCREW WITH MY MILEAGE.

Do you own a 4.8? Have you owned a 4.8 that you have modified from standard exhaust system to hi flow? Do you have comparitive fuel consumption figures for that?

That was my query.

Is it really that hard to not be such a twat?

#edit the above two posts came in before I'd finished replying to Westy, hope it explains things better.