The right of withdrawal is valid no later than 10 days from receipt of merchandise and we do not accept used or tested products.

The right of withdrawal is applied only if the product does not reflect the description on the website and the product must be returned including the original packaging.

All products purchased through our site are covered by the warranty offered by the manufacturer.

Defective products will be immediately replaced with new products.

All this of course completely free of charge.


The guarantee does not apply to damages or modifications made by the customers.

In case of refund, M4 Tuning reserves the right to retain the 20% of the order value to cover the management costs.

All parts subject to wear (see exhausts rock wool sound insulation) are excluded from the warranty.

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