I have no sound. Is that the Perrin Big MAF Intake? Inlet Pipe? Is that butcher knife really needed? LOL
now.....I wonder if my setup calls for a big maf...... lolz EVO3-16G-8cm^2 flow good air through DOUBLE-D ports....my 20psi has more air flowing into the engine than a stock WRX with 20psi on the same turbo... eh???