RB5 or GB270 which fastest?
 

Thinking of renewing my 2001 Classic Wagon PPP to a 2.5 WRX PPP Wagon, which would be a similar comparison to a RB5-vintage PPP v GB270 which maybe is the one more would have the answer to.

My car is v fast and responsive but wondered if I would lose any pace by switching to a 2.5 PPP. Looking at the raw figures it looks like there is a very slight reduction in BHP/ton but a relatively greater increase in torques/ton. But as there is nothing to beat real user experiences then any feedback would be greatly appreciated!