Build Plan/Questions F87 M2C/F80 M3/F82 M4(Posting here for the S55)

[SAC_M3]

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Good Afternoon friends,

I am a very meticulous & am currently trying to plan out my build for a f87 M2C/F82 M4/F80 M3. In the past I have owned FBO Stage 2+ 2009 335 XI E90, E46 M3 ZCP 2006 & I now currently own a 2010 E90 M3. I'm trying to set everything up as in about 16 Months I should be in a very good spot financially to pursue my goal which is a 600-800Hp S55 powered car. I am hoping you guys can entertain some questions that I have as I try to prepare everything I need for the build ahead. I have not entirely decided on the Vehicle I want but I am heavily leaning towards the M2C 2019(After finding out M2S with ECUS after 6/2020 are not tuneable) or a 2018 f80 M3. One of my reasons for aiming for 600-800hp on the s55 is that I recently moved to Palmcoast Florida & the scene over here is very straight line oriented however, I just do not want to own a American car I understand that for what I'm aiming to do/spend I could purchase a z06/gt500 & call it a day but I dont wish to do that.

Questions/Build Plan
Step 1- Purchase the Vehicle(sub 20k Miles ideally)(Vehicle will be DCT as I have a leg injury from a car accident(335) so 6mt is out of the picture)

Step 2-Aesthetics
-Coilovers
-Spacers
-Tint headlights/Taillights
-CF Spoiler/other CF Bits

Step 3-Preventitive Maintenance(Would like to know what other preventative maintenance I can do to help support the 600-800HP)
-Crank Hub
-???
-???
-???

Step 4-Power Modifications/*Build the motor potentially*
-Downpipes
-Innercooler
-Charge Pipe
-Axleback
-Upgraded Turbos(currently considering Kratos)
-Tune??


Questions-

-Other than the crank hub what are other preventative maintenance things I should aim to replace/do to help support the HP Goal of 600-800?

-Will the DCT hold that much power or is there upgrading/building of the trans that has to be done? I'm fairly new to this so I would like to know

-Ideally I would like to get the engine built if it is worth it however, I am unsure what I am looking at in terms of price and how much power gain can I expect out of this?

-Is building the Engine worth it & how much does it cost? (Reason for this is because to build the s65 in the E90 m3 you are looking at upwards of 15-30k for minimal gains)

-Shop recommendations on the east coast?

-Tuners for the s55 on the east coast?

-Would putting a Single Turbo in the S55 be a good option?

-Are there any major differences Engine/Tranmission wise between the M2C s55 & the F80/2 M3/M4?

-This is going to my first full build since the 355 FBO so I plan to purchase the car & then purchase everything together in one go to install/do everything in one go

Goals
-600-800HP Safely
-Trying to document the entire build process
-Currently trying to decide Upgraded Twins or A single turbo


Price Expectations(Upgraded twins Route)
M2C-65-70k
2016/17 F80 M3 Comp Pckg-60-70k

Price Expectations(Upgraded Twins)
Twin Turbo Upgrades(7.8k Turbos only *no install price*), Crankhub Upgrade(4.5k installed) , Coilovers (2-3k installed), w/ Charge pipe (440), Downpipes (500), Charge-Air-Cooler + Heat Exchanger Package (2k), Dinan Axleback (2k Installed) 20-25kish(Please correct me if I'm wrong)

Price Expectations(Single turbo route?)
Doc Race Single Turbo (Min 6.4k) Crankhub Upgrade(4.5k installed) , Coilovers (2-3k installed), w/ Charge pipe (440), Downpipes (500), Charge-Air-Cooler + Heat Exchanger Package (2k), Dinan Axleback (2k Installed) Unsure what else is required when going the Single Turbo route. Price range here should still be around 20-25k(please correct me if I'm wrong)



*Feel free to leave criticism I really am open to taking all the advice I get because I want to do this correctly as I did with the 335*

[SAC_M3]

Pictures of my poor 335 & current M3