with a downpipe you will get more midrange and top end power.

As far as the ranger goes, high flow filter and if popossible a manual boost controller. chipping or alcohol injection would be next step. the fuel controller I posted would ler u add a good bit of power butbu need a boost and egt gauge.

hour meter is a Nordskog like my old. boosr guage and my current volt meter its for marine use so its heavy duty got it on ebay for 25usd.