u/Dependent_Gate_6498

I’m trying to figure out an inconsistent power issue on my 2008 Mazdaspeed3.
Some days the car absolutely rips and feels like it’s making all its power, but other days it feels noticeably slower. It still runs smoothly, doesn’t misfire, and doesn’t smoke under boost.

Build:
Built motor (Manley pistons/rods, King bearings, ARP hardware)
BNR S3 turbo
Treadstone TR8 FMIC
JBR intake
Autotech HPFP internals
3” catless downpipe and full 3” exhaust
Turbosmart BOV
Tuned by Purple Drank Tuning on 93 octane
The tune was never fully finished because I got busy, so it’s on an older revision and runs a little rich. Target boost is around 22–23 psi.

I plan to:
Finish the PD tune
Pressure test the boost system
Clean the MAF and MAP sensors