400 bhp costs are not that much theres a car on ere with 406 bhp on greys and BD 10's using a T34/63

cost of MSD closed loop greys is:

L8 with std babyboard around £160 to £200
greys closed loop chip £350 to your spec
lambda sensor £80 to £100 the later is the small ecs cos type!!!
Pf09 TPS £80

Easy to install also good gains to be had with MSD's coilpack con then you can run 1mm plug gaps = better responce and MPG and none of that famous cossie hesitation under hard boost!!!!!!!

you will be very lucky to get 380 from greens and light blues can be a pig to map a chip for...

your best bet would be to speak to stu or kenny @MSD very help full

You can see 380bhp on a std engine running a T34/63 and greys and holding 28 psi