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Manhart squeezes even more power out of the Toyota GR Supra

Applying its BMW-tuning expertise to the Z4-based underpinnings of the new GR Supra, Manhart was able to get even more power out of Toyota’s flagship sports car. As the name implies, the GR 450 gets 450 hp out of the 3.0L inline-six via an MHtronik powerbox, an ECU remap, and a stainless steel rear …

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