About Us

DH Motoring is your Honda Grom engine development specialist and ecu tuner! Racer owned and operated. We don't sell anything we don't use ourselves. Everything offered here has been tried, trued and tested to withstand racing abuse. 

***Racer Program***

If you race a Grom or a Z125 in any series you can contact us directly for a racer discount. We will also offer store credit as contingency credits for podium results with a minimum grid size!

DH Motoring supports:


. . . . . . . ALL SALES "AS-IS" - NO WARRANTY - NO REFUND . . . . . .
We value you as a customer and will make every effort to keep you happy. However, because we sell only highly specialized racing parts, we cannot offer warranty on our products. Consequently, all sales are on an "AS-IS" basis. These are racing parts designed for specific uses in racing applications only. The parts may be dangerous and may cause injury if used for any other purpose, or otherwise misused. They may also be dangerous and may cause injury if modified, redesigned or altered before use. DH Motoring will not assume any liability for and will not pay you for any injuries caused to you or others by any misuse, modification, redesign, or alteration of our products.  DH Motoring will not be responsible for any incidental or consequential damage including direct or indirect labor, towing, lodging, garage, repair, medical or legal expense in any way attributable to the use of any item in this catalog or to the delay or inconvenience caused by the necessity of replacing or repairing any such item. Refunds or exchanges will be honored within 14 days of purchase ONLY if there was a mistake made by DH Motoring.