Im currently in the process of putting a 1630 ACE into my 2012 Challenger 180 sp and looking for some advice of a which impeller I should be running on this setup.
engine is out of a 17 rxp-x 300 and will be installed with a Riva stage 1 tune, IMUK, Riva power filter kit, R&D intake grate, Fizzle inter-cooler / tubing upgrade and free flow exhaust/water box. Jet pump is 161mm.

Thanks