2010 RTX 215 impeller selection for planned upgrades

[jeremyhass]

long time lurker here on the forum, I have 2010 RXT 215 that I`m upgrading and wasn`t sure what impeller to go with 14/19 15/20 15/21? see listed upgrades below I plan on doing before riding season hee in michigan, any help would be appreciated, Thanks

kanaflex 4" already had installed before
flywheel bolts
160 degree thermostat
fizzle ext cooler
riva 215 XX supercharger wheel
fuel pressure regulator
riva through hull exhaust
42 lb bosch green injectors

[Green Hulk]

long time lurker here on the forum, I have 2010 RXT 215 that I`m upgrading and wasn`t sure what impeller to go with 14/19 15/20 15/21? see listed upgrades below I plan on doing before riding season hee in michigan, any help would be appreciated, Thanks

kanaflex 4" already had installed before
flywheel bolts
160 degree thermostat
fizzle ext cooler
riva 215 XX supercharger wheel
fuel pressure regulator
riva through hull exhaust
42 lb bosch green injectors

Hi Jeremy, with the stock tune you will want to use this impeller
https://www.4-tecperformance.com/ind...oducts_id=7824