alexzoutsos

Most of the mods on a T5 are centred around making a higher turbo boost. Something you obviously can't do!

There isn't a huge amount of things you can do, but these are some:

1. Highflow panel air filter, around £40 probably only 2 or so hp increase, but will get better throttle response lower down - best done when your air filter needs changing - these last for 1,000,000 miles with cleaning!

2. Stainless steel performance exhaust, around £350, should add around 10bhp, and obviously will last for ever - most have lifetime warranties.

3. 'Superchip' or similar, which will increase fueling and alter timing a little to give you around 15 bhp for £300.

There are other things like performance cams etc but these are very rare for volvos and decrease driveability, which is what volvos are all about!