Justify turbo upgrade ? M235i

I'm still contemplating whether or not a turbo upgrade is worth it.

Couple qwk things:

1.JB4 & downpipe.... (+/- 400hp)$1450 parts, labor $250, total $1700
Soo $1700 for 400hp

2. Turbo upgrade.... ( +/- 395hp) stage 1, $1000 + core $750, labor $400.total $2550
( +/- 455hp) stage 2, $2500 + core $750, labor $800 total $4050
( +/- 536hp) stage 2, same

So basically, a JB4 & DP etx cost $1700 +/- for 400hp

And stage 1 turbo cost $2550 +/- for 395hp
And stage 2 turbo cost $4050 +/- for 455hp-536hp

Also keep in mind..... JB4 & DP cost prob spot on.

Turbo upgrade cost prob need to add $300-$500 for miscellaneous gaskets, parts, labor time, tune.

Now.... Here come the questions:

1. JB4 & DP prob plug & play, done.

2. Turbo upgrade installed at costs provided, BUT.....

Are the turbo upgrade claimed hp #'s using ADDED upgrades also? (Jb4,DP,exhaust)???? If Yes, then even more money!!!

Are the claimed hp #'s for turbo upgrade on pump gas ? 93 octane ? Or RACE setup only ? Or meth added ?

Trying to justify the cost,time, and actual real time usage of turbo upgrade... Meaning..... No point upgrading to Stage 2 per say, if always requires race gas,100+ octane.

Looking for daily driver increased hp, ease of use, and somewhat budget friendly!!!!

Hope this convo helps clear up some stuff for anyone thinking of adding upgrades, tune and or turbo upgrade.:thumbsup: