We can port your k03/k03s stock exhaust manifolds as pictured which, when combined, can allow up to +20bhp gains on K03 hybrids of suitable 300bhp spec.
This service is based on the customer supplying their exhaust manifold to us. We then port it, aquablast it and return it.
(Ensure you check for cracks before posting to us as we will port manifolds in the condition you send them in - All responsibility for inspection is YOURS)
Typical turnaround time 3-5 working days from receipt.