That’s 2151 cubic centimeters to you and me, and maybe the biggest engine out there after the Triumph Rocket 3, no" That’s 14 ci bigger and/or 234 cc larger than the biggest M8 you can get in any production Hog. It?s good for 135 ft-lb of torque and 124 HP at the rear wheel, says Harley, when paired with Screamin’ Eagle Street Cannon mufflers. A nice little upgrade to your 2018 and later Softails that came with a M8.

Harley-Davidson Press Release:
NEW SCREAMIN? EAGLE 131 CRATE ENGINE OFFERS BIG POWER FOR SELECT HARLEY-DAVIDSON SOFTAIL MOTORCYCLES
The Biggest, Most Powerful Street-Compliant Engine Harley-Davidson Has Ever Created Now Available for Select Softail Models
MILWAUKEE (August 25, 2020) ? Harley-Davidson offers power-hungry street riders a new performance option with the introduction of the Screamin? Eagle Milwaukee-Eight 131 Crate Engine for select Softail model motorcycles. The new 131 cubic inch (2151cc) V-Twin engine delivers the biggest, most powerful street-compliant engine Harley-Davidson has ever created.* The Screamin? Eagle 131 is a bolt-in replacement engine for select 2018-later model Harley-Davidson Softail motorcycles originally equipped with a Milwaukee-Eight engine, designed to run at high RPM and to provide a significant boost of torque from cruising speed. Riders will experience commanding performance from the moment the throttle is cracked open on the Screamin? Eagle 131 engine, performance backed by the assurance of a 1...