I went stage one in 2017; I've often wondered if I missed a trick by not going to stage two, but the reality is that there have so far been very few occasions where the extra 70 or so BHP (or the accompanying extra torque) would have made a difference. So overall, I've not regretted sticking with stage one; I guess it's all about how you use it and when.Next question is on remapping.
Stage 1 for £750 or do I got straight for stage 2 at ~£1500.
This is supposed to be the "daily" and the dog car, if I want to go properly fast obviously I have the GTR (which is going in for a revision to the map on the 20th that should give me a bit more power and area under the curve)
Gut feel is stage 1 should do fine.
I went stage one in 2017; I've often wondered if I missed a trick by not going to stage two, but the reality is that there have so far been very few occasions where the extra 70 or so BHP (or the accompanying extra torque) would have made a difference. So overall, I've not regretted sticking with stage one; I guess it's all about how you use it and when.
I made my mind up after you posted this answer, so mines booked in with Turner Race Developments https://www.turner-race-developments.co.uk/ for a major service and a Stage 1 APR remap on the 18th.
That's pretty similar to my stage 1 results back in 2018; 386BHP (393PS) and 363lb/ft torque.The results are in, before mapping 335bhp with 330 torque, after mapping 400bhp and 356 torque, not seen the graphs yet so no idea on what the area under the curve looks like, the mapper is really pleased says it feels great but couldn't get any more out of it without a cold air feed into the airbox.
I was hoping for a little more but will run it like this for a while and see what I think.
Feels very different to drive much better than stock, not sure it is enough for me though..
Hardware changes at Stage One were a Forge silicone air intake and APR mesh air filter. Hardware changes for Stage Two were an APR supercharger pulley and belt.Nice!
what changes did you make to get that result, and how does it feel compared to the stage 1 on the road?
Simon
Very similar to how my graph looks, the mapper was saying that it is a "proper" 400 and basically slagged of what he called "happy dynos" that give 450 from stage 1 software only remaps.
the BMW is actually for my son, he has been bugging me for ages to help him get something so I finally gave in. Will be a nice father and son rebuild project hopefully legal and on the road by the end of the year - assuming the DVLA don't take 12 weeks to sort the V5 again!
He will be paying me back, that was an essential part of the deal!