I just finished my stage 3 mods (injectors maf and ecu) and i noticed when the car isn't moving and I push in and release the clutch the engine stumbles...it doesn't do it when the car is moving though (coasting in neutral). Im running Eurodyne tune with 42lb Greentops and 85mm MAF. I just don't see how releasing the clutch would cause the engine to stumble! I also run a Vast Stg III clutch with LWFW.
Car runs fine, stumbles a bit at idle but im pretty sure i need new spark plugs to fix that.
Im uploading a video to youtube now.