If you think in terms of 10-15 bhp gain on your present set-up whatever turbo you have then you wont be disappointed. To think in terms of 30bhp is unrealistic

 

Mine made 390 something on a 2 liter then with 10% meth 1.6bar it made 419.5 on Surrey rr turbo supplied by mark mapping and fitting was done by slow boy by you also need all supporting mods to have a reliable 400 and it ain't cheap.just cause it made 420 on my car it doesn't mean it will make 420 on someone elses car might make more or less you never know. Your mapper needs to have ***** other wise your car might make 400 but won't feel like it as it's too safe. That's why it's always better not take short cuts pay that bit extra and get the peice of mind

 

the inlet is 90 degree. Do you know were i can buy the parts to change it to a strieght inlet?

 

If you're very careful you can DIY or get an engineering shop to chop it off at the elbow making it a straight inlet. Otherwise you'll have to buy a compressor housing with a straight inlet.

 

do you know were i can get the correct housing from?

 

eBay or the various scooby specialists searchable online or on scoobynet. There shouldn't be a shortage of supply.