Been looking at the AWE cold air intake. 4.5 inch pipework, which is the largest available right now. I was also looking at the integrated engineer intake which is 4 inch pipework....seems the IE intake has “proven gains” though unsure how true that really is. at stage 2 (forge inlet, wagner/forge stage 3 intercooler, BCS decat/100 cell sports cat, panel filter and snow flap removed) would I really see £850-1700 worth of improvement over a stock airbox with the aforementioned snow flap removal mod done? If it’s say 20bhp/20lbft of torque id probably take the used IE intake I have on offer for £850, but can’t really see the £1700 price tag on the AWE? can anyone prove me wrong? Anyone done stock airbox vs the two intakes above on the same dyno same day?