Introduction of the GPF created a new challenge for petrol engines, as it compromised performance and the signature engine sound. Sports cars in particular are very negatively impacted as a high-quality engine sound is a key feature the consumer expects.
Recovering the engine noise signature, while balancing performance and emissions required a multidisciplinary and innovative approach. With global regulation changes driving this problem, it was vital to find a long-term solution that could be implemented quickly.
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