I have bought a used commodore and I am looking for some more performance, this is the Alloytec engine and it has the 5speed sports auto I would like to know, what’s the best thing to do to the exhaust, gearbox and the diff ratio? I want it as a daily dri

Besides servicing the 5 speed auto there isn’t much more that can be done, with the exception of a shift kit which you can pick up from the US. Depending on your mods, we’d recommend starting off with a twin 2.25'' cat back exhaust system In regards to diff gears a set of 3.45:1 or 3.7:1 gears will be fine