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Posts: 6,161
Join Date: Oct 2013
Car: e90 335i
Default 06-24-2019, 10:24 AM

Originally Posted by 05g356mtt
This may be a dumb question but after logging a few runs, I've noticed the stock ecu psi on my RS seem to max out at 13.1psi at 4500rpm while others seem to be able to hit higher ecu psi. Is this where better fuel comes into play?

Ordered LDP's, with LDP's not being restrictive as stock cats will stock ecu psi be higher?
ECU psi depends on IAT, fuel used, elevation, etc. It's never an absolute target, so it does vary.

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