There’s a point in a performance bagger build when the conversation turns to boost. Trask Performance’s Touring Assault Turbo system is for builders ready to have that conversation—and make room for a turbocharger in the process. With applications spanning Twin Cam and Milwaukee-Eight touring platforms, the Assault packages the major forced-induction components into one substantial upgrade.

At its core is a turbocharger with an integrated blow-off valve, paired with a two-bar MAP sensor. A stainless steel header and heat shields handle the exhaust side, while a plenum, injectors, spark plugs, boost gauge, and heavy-duty clutch spring round out the listed equipment. M8 systems receive a three-inch tailpipe. Twin Cam kits include intercoolers; M8 versions do not.

That component list matters. Adding boost puts fueling, calibration, and clutch capacity into the same conversation, and Trask includes hardware addressing several of those needs. The appeal is having a defined starting package around which to plan the rest of the motorcycle.

Choosing the right system starts with displacement. Trask recommends Stage 1 for engines measuring 114 cubic inches or less and Stage 2 for 117-inch engines or larger, including planned engine builds. If a bigger motor is already on the wish list, that’s a discussion to have before ordering.

Applications are separated into 2002–2007, 2008–2016, Gen 1 M8, and Gen 2 M8 selections. The displayed starting configuration is $6,500, with final pricing dependent on the options selected. Installation, calibration, and any additional supporting modifications belong in the overall build budget.

Fitment also requires a closer look than matching the year on the registration. Trask excludes fixed lower fairings on liquid-cooled models and notes potential interference with some engine guards. Confirm the complete combination before committing.

For Hot Bike, the interesting part is what comes after installation: throttle response, power delivery, and how the entire motorcycle handles the added demands of boost. Those answers require testing a finished build. On paper, the Assault provides a compelling foundation for a serious turbo bagger project—and plenty of mechanical attitude to go with it.

NOTE: Trask states that this system is not legal for sale or use on pollution-controlled vehicles in the United States.