I didn't realise there would be that small a diff in price between 2871 and RS,
which one would you say would work best, car is used most days but drivablity isn't a worry, if its a bugger to drive then so be it!
Also would a Forge FMIC be suffucient for these kits?
Would there be a need for any extra parts or mods on top of the retail kit?
Yeah, small price difference, but its only the turbo thats different (housing).
Depends what you want really, the 71 obviously is capable of more power but a touch more lag.
Depends on engine mods really, if you 'build' the engine, then you'll be able to push the potential of the 71. If not, then the gtrs would probably be more suitable.
The uprated high flow manifold is also a good upgrade to get the most out of either and helps with spool.
A good free flowing exhaust and down pipe would also be needed to make good figures.
The forge fmic would be fine for either, if you want an easy fit.
I would also advise a decent clutch and single mass flywheel combo, which we could supply also.
Its up to you and your bro to what power you want to make, but we can
help and advise whatever you choose.