swrsturbo go see tony at ART in wakefield. He modified my ecu and did a set up on his rollers for £100. He says it will fuel the engine up to 240 ish bhp.
If ya wanna bell him his number is 01924290431
i've had a go at filling my own bumper with some ready mushed up glass fibre reinforced sticky stuff, sets rock hard just needs finishing with bodyfiller.