Re: Mods for XR8 5.4
Be prepared to feel that after you do 1 mod, it'll be hard to stop. Unfortunately i didnt run my ute stock, nor did i take before/after dyno runs, most of the time the people who usually run the dyno machine werent there the day of fitting the mod.
I got my herrods full stainless exhaust 1st, which improved power all through, particularly low to mid revs. Also made it sound friggin horn
Secondly the cold air intake (SS Induction type) made just as much difference to the feeling of power as the full zorst. It gives it more pull as revs increase and changes the note slightly.
The Helix Throttle Body spacer from herrods made an increase to acceleration, also runs better at idle i found. Every bit of increase helps. I thought about a chip to get better power and response but it seems i've been hearing a lot of late of the learning capabilities of the Boss's causing dramas for the chips.
Time to wait for some sort of edit for the ecu of the boss, me thinks there will be considerable scope there