Just gauging interest at the mo as they are still on the car.Both are specifically for a new age impreza.The powerflow is the mushroom type and sounds awesome.The bailey is in chrome and gets louder,the quicker you go-so its quite stealth-like whilst at normal speeds(can be heard but not too loud).This is for an 01-04 car.HKS has done about 200 miles,Dump valve,about 350 miles.HKS retails on e-bay at about £120 not incl p&p.Dump valve retails at £105 not incl. p+p.Will be looking for about £100 ono for induction kit and £80 ono.PM me if interested and will get back to you asap.Both will be available over next week/10 days.Thanks-Harvey