Emerald Rolling Road

Emerald other a superior service that gives real results.There is no bullshit involved. I wouldn't use any other ECU by choice when modifying any of...

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I had John Lamsley set up my Defender 90 1UZFE. What a massive difference he made to it. Fantastic and highly recommended Company. Cheers John for...

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Used emerald for yrs, once mapped it never needed maintenace, luv it K3

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Thanks to john and Keith for all there help yesterday

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Well done , filled with 97 octane : thanks John : D

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