Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm — Stage 1 file (+60 hp)

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Chip tuning for Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm ECU

Mack Trucks Maxidyne (I (1990 - 2005)) AMI-335 12.0 340hp (250kW) 1816Nm — commercial diesel engine of the commercial segment of the Volvo Group (Mack Trucks) group (США, 1900). Stage 1 chip tuning raises power from 340 to 400 hp (+60 hp, +18%) and torque from 1816 to 2016 Nm (+200 Nm). The 1990 generation — first-generation CDI/TDI/HDi diesels with relatively simple ECU protection; OBD reading works directly.

Mack specialises in heavy tractor units and construction machinery in the US. Mack has been part of the Volvo Group since 2000. Mack Trucks is an American truck manufacturer, founded in 1900. Truck chip tuning is a discipline of its own, focused on fuel consumption and pulling power rather than peak output. The factory calibration is conservative, leaving headroom for Stage 1 while preserving engine life. High-output diesels head the truck segment, and Stage 1 is especially felt in Nm.

The professional logistics segment tunes for fuel consumption and pulling characteristics. The truck chip tuning community is an industry of its own, focused on long-haul routes. On high-output trucks, Stage 1 reduces fuel consumption under load. High-output MAN units are long-haul tractors with solid headroom for Stage 1.

Frequently asked questions

What is the Stage 1 effect on the Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm?

The Stage 1 gain for the Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm is 60 hp (+18%) over the stock 340 hp, for a total of 400 hp. Torque rises from 1816 to 2016 Nm (+200 Nm).

What is Stage 1 chip tuning for the Mack Trucks Maxidyne?

Stage 1 chip tuning of the Mack Trucks Maxidyne is a rework of the ECU maps: boost pressure, ignition advance, target lambda and the removal of factory torque limiters. The gain is +60 hp with no hardware changes.

Is Stage 1 safe on the high-output Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm?

The high-output Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm has a conservative factory calibration aimed at the mass market. Stage 1 unlocks the engine's real potential while turbo and injector life are preserved.

How much does Stage 2 add on the Mack Trucks Maxidyne?

Stage 2 on the Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.

What happens to the Mack Trucks Maxidyne warranty after chip tuning?

The factory warranty of the Mack Trucks Maxidyne does not remain valid after Stage 1 — the manufacturer withdraws its obligations once the ECU software is changed. CHIPOK provides its own warranty on its work and support.

How long does remapping the Mack Trucks Maxidyne take?

On the Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm: OBD flash 25-30 minutes, Bench (if required) about an hour. The file processing itself takes 5-30 minutes once the original bin is received.

Is the original file kept when chip tuning the Mack Trucks Maxidyne?

Yes, the original ECU firmware of the Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm is kept and can be flashed back at any time. Returning to stock via OBD takes 25-30 minutes.

What is the price of a Stage 1 remap for the Mack Trucks Maxidyne?

Stage 1 for the Mack Trucks Maxidyne AMI-335 12.0 340hp (250kW) 1816Nm is paid for with CHIPOK credits (1 cr = 1 €). The final amount is set in the calculator, taking the extra options (off functions) into account.

Last updated: 31.08.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno