About the BIGVALVE High Responce Kit

BIGVALVE HighResponsekit

Set yourself apart from the rest with the BIGVALVE High-Response Kit, the flagship model for NAPREC. Engines equipped with these precision custom-made parts, which create the BIGVALVE cylinder head, are sure to see a dramatic improvement in overall performance. These kits are also being used in various races, such as drag racing and the D1 Grand Prix.

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