![MR165 (mTune only) [Mk7 Fiesta 1.0 EcoBoost] Calibration:MR165 our workshop team will then](https://cdn.shopify.com/s/files/1/0367/2621/products/mTune_mr300_5e1c7656-69a3-4363-85f6-bb7193eab650.jpg?v=1584697863)
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our workshop team will then contact you to confirm this date
Cupra Ateca 2018+
Otherwise a partial refund will be given
If a lower octane rating of fuel is the only grade available we recommend switching to the m235 calibration which can be used on normal unleaded fuel reliably in all scenarios
ensuring optimum charge air temperature and therefore power
MR165 (mTune only) [Mk7 Fiesta 1.0 EcoBoost] Calibration:MR165 our workshop team will thenThis option is for customers who wish to upgrade to MR165 using an mTune and who fall into one of the following three categories: 1) MP135 customers who have all the required hardware installed for MR165 but require an mTune and MR165 calibration. 2) MT135 customers who have all the required MR165 hardware (including an mTune) but require an in field firmware update to their existing handset. In field firmware updates are facilitated via a bespoke
