With a stock turbo, stock airbox + filter, 3.5" TMIC, second cat delete, otherwise stock exhaust and HT tune - adding the 2XS mani I saw gains in the bottom and top end - more torque down below, and peak came a little higher in the rev range. Pushed my results up to 210Kw/425Nm ATW as measured by on board diagnostics based real-time rolling dyno - using all the vehicle stats to get an accurate result (weight, tyre rolling resistance, aerodynamic coefficient etc). The only thing that wasn't accounted for in that 210Kw measurement was a very slight uphill gradient when it was measured, so the measurement is more likely to be conservative than overstated...
A K&N filter or pod and a turbo back exhause, even just a downpipe I reckon would push it past 220Kw ATW. I'm happy with the restrictions I've left on though coz I was chasing street friendly performance that wasn't going to stress anything out too much. Had 90,000K on it when added the mani....
"Blue Meanie" 2007 Aurora Blue MPS 3 - 18x8.5+44 SSR GTX01 - 235/40R18 Michelin PS5 - 3.5" ETS TMIC - CPE stg 2 mount - HKS/CPE BPV - 2XS inlet - 2XS short shift - Corksport turbo manifold - HT 98 octane tune - Leather/Aluminium handbrake - Momo shifty knob - 7" touchscreen - JDM Mazda Retractable dashtop screen assembly - Bespoke Raspberry Pi Android based GPS/Carplay and instrumentation - 36AH reserve battery and C-TEK isolator - TEIN Street Advanced coilovers 1" drop - Superpro bushings - 220Kw/410Nm.
"Lipstick" 2013 Velocity Red MPS 3 - 18x7.5+48 Enkei RPF1 -225/40R18 Federal RS-RR - CPE TMIC - COBB inlet - CPE stg 2 mount - COBB Stage 1 98 octane tune - COBB shifty knob - 2XS short shift - 2XS turbo manifold.