Is the Prodrive back box from the MY01 WRX PPP the same as the STi7 back box?
How much quieter and restrictive is the PPP back box when compared to an original Scoobysport (H&S)for example? This would be on a decat STi7 UK with Ecutek remap runing on 102RON fuel. I am looking for a quieter exhaust with less drone on the motorway.
I had an MY00 PPP which gave a good sound without the drone but it wasnt decatted.