If it’s more grunt low down and a smoother ride you want then you will see the biggest improvement with respect to this by fitting Kev’s O2 controller first. Kev’s fuelling mod will give a further improvement, and in conjunction with DNA filter(s) more power, but the it's the O2 controller that'll give you flexibility you'll need if you aren't interested in chasing horsepower.

Mind you Kev gives a discount if you buy both mods at the same time; something worth thinking about.

Read this thread re: O2 controller.

__________________