Quote:
Originally Posted by ozymandias435
The hierarchy of parts installed in my opinion would be
1. Charge pipe
2. FMIC
3. Downpipe
4. Tune
5. Intake if you must purchase one. I would get inlet over intake
Charge pipe for reliability and peace of mind. The FMIC will keep intake temperatures in check and allow the engine to continue to produce peak power after driving for awhile. Majorly beneficial on stock engine and will feel a small but noticeable HP increase from the FMIC. Downpipe frees up the turbo to exit more air faster. Again majorly beneficial on stock car as well as a really nice hp increase from the downpipe. Once these mods are installed then I feel is the perfect time to introduce the tune. Your car will be best equipped and will be better capable to handle the extra stress.
I've toyed with a couple intakes and compared them through data logs with lackluster results. Stock or Mppk + drop in filter still seems to be as good or better than any other intake performance wise. Sound wise there are plenty that make more whooshy noises.
Happy building!!
Chase
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Follow the recommendations in this post.
CP+IC --> Stage 1
Add DP --> stage 2 (or 2+ if MHD)
There's no reason for a JB4 with what you are seeking. Get BM3 or MHD. Read both threads if you want to understand the nuanced differences between each, otherwise just pick one.
When you are complacent with those mods, add a turbo inlet (MST v2 highly recommended). I demonstrated this is a tangible improvement both with data and subjectively. Alternatively to the inlet, another mod to satisfy the itch and pair with other "FBO" mods is XHP. Eventually, do both, as drivability and throttle response will be excellent. As you alluded to, there are torque limits in the 8AT. XHP is the way to 'properly' up those limits so you can get full power in 3rd and 6th gear.
Skip the intake unless you want noise. Same for exhaust.
Of course, before any mods, do maintenance as mentioned. Trans pan and fluid should have been done around 75k miles. Plugs every 30kish once tuned. Go OEM plugs (bosch) with stock gap. NGKs are not an "upgrade" - only switch to those if you have issues with OEM. Read numerous threads in the maint. section of these forums if you want more recommendations on service intervals.
Inlet thread (find my post with data later on):
https://f30.bimmerpost.com/forums/sh....php?t=1656337
My intake review thread:
https://f30.bimmerpost.com/forums/sh....php?t=1765289
My datalogging thread, for after you tune:
https://f30.bimmerpost.com/forums/sh....php?t=1732327