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Mechman high output alternators · Authorized dealer
The xD is a small hatch with a small engine, so audio builders who add an amplifier and subwoofer need to plan electrical capacity carefully. A Scion xD high output alternator gives the 1.8L engine more charging headroom for that equipment. Mechman lists a 320 Amp unit and a 240 Amp unit for the 2008-2014 xD.
Compact cars with modest engines leave less margin for added electronics. In an xD, a mono amplifier and a single subwoofer can be enough to dim the headlights on bass hits, especially in city driving where the engine spends a lot of time near idle. Add a dash camera, phone chargers and brighter lighting, and the battery starts losing ground on short trips. A Scion xD high output alternator restores the balance so the system plays cleanly and the battery stays charged.
Both Mechman high output alternators here fit the 2008-2014 xD with the 1.8L engine. The 240 Amp unit is well matched to a single amplifier and subwoofer, which suits most xD builds given the cargo space. The 320 Amp unit makes sense if you plan a larger system or extra accessories. Confirm your year and engine in the vehicle finder above the products before ordering.
Size your power and ground cable to the new output with an amp wiring kit, and see other models on the Scion alternators page.
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