Unichip and or full exhaust upgrade Cruiser 100 4.8 V8

If the Dtronic setup for diesels sounds good to a pesimestic old bloke like me, then something like that for a petrol sounds good as well, with an unrestricted, as lawful as possible, that is, exhaust system to help get the extra grunt.
I have a 3 litre Patrol, and the Dtronic figures sound Ok to the point where I am going to look at having it fitted when I can get back to towing again. Even if I don't go for the chip I will be up sizing the whole exhaust system, cat included

AVO do a turbo kit for the V8 100, though a unichip will see a 17-20% power increase, and around 2lt per 100km improvement in fuel economy.

On top of a unichip, if you fit a dual map unit, at the flick of a switch you can go from a PULP map to a ulp map if travelling.

I would chnage the muffler, and leave the rest of the exhaust unless adding the turbo.

i'm not sure how far you wish to go but - 360kw at the back wheels of a lexus (jap import) - similar v8 but has taken an awful lot of work and not done on the cheap. if you really want to play and get some serious smoking from the tyres visit a few of the jap speedshops on the internet - they ship anything anywhere (for a price) and actually can help. rgds