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A video I've been waiting to make for a long time! Today is a day of testing: we will see the HJS motorsport sports downpipe with APPROVAL in action to be able to perform a legal tuning on the car! At work on this BMW M340i with the glorious B58 to see how it will perform. It is a product that declares great promises, but will it be able to respect them?? We have these downpipes available to order, also with the approved sports OPF combination (example Golf 8R), contact us to check availability and a quote! ORDERS AND APPOINTMENTS www.powerking.it/store [email protected]