Philia_Bear;112619 wroteBC's are crap on the S40
KW v1 are tolerable on a road car
v2/v3 are about the same as the B16kit I have in my s40 which is intolerable for 99% of people
With the right spring rates and shocks, there is ZERO value in touching the sway bar, the only reason it sways slightly badly from the factory is due to the obscene height and soft spring rates
Fix them and you discover that volvo got the sway bars dead on for a road car
@AshDVS can supply some nifty lower control arm bushings that I highly reccomend
Replace tyres with some RE003's
If you want performance from the engine
I'm going down the path of DO88 intercooler, doing my own intake and hoses and then someones tune for max power on the stock turbo after doing something with the **** exhaust and DP
However... there is a pile of stage 0 stuff that should be done to the engine and AWD system first
1. Ignore what volvo says about the timing belt, it should be done at 7 years or 100,000km, do the water pump and seals at the same time
2. Volvo sprak plugs only
3. Change out the angle gear oil
4. Change out the haldex filter and oil
5. Change out the rear diff oil (GL5)
6. Change out the trans oil (Synthetic GL4!!!!, GL5 will kill the syncros)
7. Replace the lower engine mount with the e-focus part