I'm looking to get some increased bhp out of my 2001 (Y) 320i. The budget is around £1000 including labour. What would be your recommended upgrades? I read the sticky on E46 upgrades but that stretches beyond my budget and includes suspension etc. I was thinking air intake, exhaust system and a remap + uprated brakes if required. Links to products would be great and an idea of labour at an independent garage rate would be brilliant.