{"id":50063,"date":"2026-05-18T12:04:22","date_gmt":"2026-05-18T10:04:22","guid":{"rendered":"https:\/\/www.italpassion.fr\/?p=50063"},"modified":"2026-05-13T13:56:07","modified_gmt":"2026-05-13T11:56:07","slug":"he-pushes-the-4-cylinder-engine-of-the-lalfa-romeo-giulia-to-400-hp-and-claims-that-this-is-not-yet-the-maximum","status":"publish","type":"post","link":"https:\/\/www.italpassion.fr\/en\/alfa-romeo\/il-pousse-le-moteur-4-cylindres-de-lalfa-romeo-giulia-a-400-ch-et-affirme-que-ce-nest-pas-encore-le-maximum\/","title":{"rendered":"He pushes the Alfa Romeo Giulia's 4-cylinder engine to 400 hp... and says that's not yet the maximum."},"content":{"rendered":"
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The tuner MTD (Multiair Tuning & Developments), already known for transforming the small 1.4L MultiAir from the\u2019Alfa Romeo MiTo<\/a> into a 530hp monster<\/a>, returns with a spectacular new project. This time, the team is tackling the GME 2.0L turbo engine in the\u2019Alfa Romeo Giulia<\/a>, With a very different philosophy: to create a true family sedan capable of delivering 400 hp... while remaining usable on a day-to-day basis. And the first results are already impressive: 0 to 100 km\/h is claimed in just 4.2 seconds.<\/p>\n\n\n\n

An Alfa Romeo Giulia \u00abwagon\u00bb with 400 hp<\/h2>\n\n\n\n

In contrast to the extreme project based on the MiTo, MTD explains that it worked on a Giulia conceived above all as a versatile road car. A fast wagon, capable of very high performance without totally transforming the car.<\/p>\n\n\n\n

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To reach 400 hp, the tuner used his \u00abKit400\u00bb recipe. According to MTD, this includes an MTD turbo, a Stage 1 camshaft, a 76 mm downpipe and Stage 3 engine reprogramming. The automatic gearbox has also been specially mapped for faster gear changes and engine speeds up to 7000 rpm. Boost pressure has been increased to 2.0 bar.<\/p>\n\n\n\n

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Preparation still limited by certain original elements<\/h2>\n\n\n\n

Already impressive, MTD claims it has not yet reached the Giulia's full potential. The tuner cites a number of limitations linked to the choice to retain certain original components in order to maintain a comfortable, unobtrusive ride.<\/p>\n\n\n\n

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The OEM rear silencer limits the possibility of further increasing turbo pressure. The same applies to the intake cooling system, also retained in OEM configuration. Despite an electronically reworked coolant pump, intake temperatures would tend to rise after several accelerations or standing starts.<\/p>\n\n\n\n

Finally, the original suspension springs complicate the transfer of power from the ground to the front axle, especially under hard acceleration. In spite of this, the claimed performance is already very serious for a Giulia designed for road use.<\/p>\n\n\n\n

MTD sets its sights even higher<\/h2>\n\n\n\n

The tuner has no intention of stopping there. Several upgrades are already planned, including the installation of threaded combos, a new exhaust system and a modified cooling circuit.<\/p>\n\n\n\n

With these improvements, MTD estimates that this Alfa Romeo Giulia could break 11 seconds for the 0 to 400-metre standing start. Even more impressive is the announced target of under 10 seconds for 100 to 200 km\/h. By way of comparison, the current record claimed by MTD on this exercise is already 10.57 seconds corrected.<\/p>\n\n\n\n

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