Better to leave it unblanked. That allows some exhaust heat to penetrate the EGR cooler, thus helping to heat your coolant more quickly. You will find engine warmup is noticeably slower without the EGR working.
GAD was founded in 2009 where we developed bespoke ECU Remapping software for motorsport clients, moving forward, we have extended to road vehicles for both performance and economy, contact GAD Tuninghttp://www.GADTuning.co.ukto discuss your requirements.
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