DHM Honda Grom Stage 3 Package (UPGRADE for Prior Customers)
DHM Honda Grom Stage 3 Package (UPGRADE for Prior Customers)
DHM Honda Grom Stage 3 Package (UPGRADE for Prior Customers)
...

DHM Honda Grom Stage 3 Package (UPGRADE for Prior Customers)

$162.00
Camshaft: I already own a TB or DCR R2 Camshaft
I already own a TB or DCR R2 Camshaft
I would like a new TB camshaft

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
Product description

This is the Upgrade kit for existing DHM customers!

You MUST send in your previously flashed DHM ecu. If you send in a virgin ECU you will be charged at the full kit price, not the upgrade price. If you do not already own a DHM Stage 1 flash or cam package, do not order from this page. You can order a complete kit HERE.

The DH Motoring Stage 3 Package consists of the following:
DHM ECU Flash
DHM High Compression Stock Bore Piston
TB Parts Camshaft
NGK CR9E with spacer

Combined with your aftermarket intake and exhaust, this is the most you can get out of your Grom without doing any head work. After dyno testing we were repeatedly seeing 13.5hp at the wheels (SAE) run after run! The Stage 3 package makes more power than a stock Grom at every RPM and double the horsepower at 9000+ rpm! 91 octane fuel is absolutely required. Any fuel with a lower octane rating may result in engine damage! 

We are not selling preflashed cores as part of upgrade packages. You must send yours in to be updated. This is subject to change, but at the moment there will be no exceptions to this. 

Install video:

<iframe width="970" height="546" src="https://www.youtube.com/embed/LlQNSwmadaA" title="Honda Monkey | DHM High Compression Piston Install | Garage Time" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

Shipping & Return

Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price. Please contact us if you have any questions.