GromZILLA Giveaway
Watch the Grom Build & Enter Weekly To Win
GromZILLA Giveaway


Engine Build








Enter Weekly for More Chances to Win
Grand Prize

Enter to win until 12/27

One winner will take home a new Honda Grom with 21 performance upgrades including a 170cc Koso Big Bore kit with a 4V head and a Yoshimura Race Series Full System Exhaust. Watch the videos above to see all 21 upgrades.


Enter weekly at until December 27 to increase your chances of winning!


Every week we will randomly select someone to win $50 in Partzilla Bucks PLUS a t-shirt or hat.

GromZILLA Swag

Grand Prize Close Up


with $5,000+ in UPGRADES

Honda Grom Up Close

Koso 170cc Big Bore Kit with 4V Head

170cc ceramic-coated cylinder kit. Includes a forged piston, performance camshaft and 4-valve cylinder head along with other components to make it work. This kit takes the Grom to another level with increased performance and more horsepower.
MSRP: $949.95
PZ PRICE: $841.65

DynoJet Power Commander

A new DynoJet Power Commander V fuel injection module manages the fuel/air mixture within your Big Bore motor to maximize performance. This allows you to fine-tune the engine with precise calibrations to fully take advantage of all the power upgrades built into the Grom.
MSRP: $419.95
PZ PRICE: $374.88

Yoshimura Race RS-2 Works Full System Exhaust

With a stainless-steel header and tail pipe, this exhaust kit gives you the benefit of more horsepower and torque while eliminating some of the weight associated with the stock exhaust system. The carbon fiber muffler contains more packing to help the Grom run quieter without sacrificing any power.
MSRP: $549.00
PZ PRICE: $549.00

Ohlins Front and Rear Grom Suspension Upgrade

Ohlins brings advanced suspension technology to the Grom. These shocks offer compression and rebound dampening adjustment, so the ride can be fine-tuned for each rider across many conditions.
MSRP: $495.00
PZ PRICE: $464.30


CONTEST RULES & regulations

1. Eligibility: This Campaign is open only to those who sign up at and who are 18 years of age or older as of the date of entry. The Campaign is only open to legal residents of the United States and is void where prohibited by law. Employees of Outdoor Network, its affiliates, subsidiaries, advertising and promotion agencies, and suppliers, (collectively the “Employees”), and immediate family members and/or those living in the same household of Employees are not eligible to participate in the Campaign. The Campaign is subject to all applicable federal, state, and local laws and regulations. Void where prohibited.

2. Agreement to Rules: By participating, the Contestant (“You”) agree to be fully unconditionally bound by these Rules, and You represent and warrant that You meet the eligibility requirements. In addition, You agree to accept the decisions of Outdoor Network as final and binding as it relates to the content of this Campaign.

3. Campaign Period: Entries will be accepted online starting on October 18, 2019 at 12:00pm ET and ending December 27, 2019 at 11:59pm ET. All online entries must be received by December 27, 2019 at 11:59pm ET.

4. How to Enter: The Campaign must be entered by submitting an entry using the online form provided at The entry must fulfill all Campaign requirements, as specified, to be eligible to win a prize. Entries that are incomplete or do not adhere to the rules or specifications may be disqualified at the sole discretion of Outdoor Network. You may enter only once. You must provide the information requested. You may not enter more times than indicated by using multiple email addresses, identities, or devices in an attempt to circumvent the rules. If You use fraudulent methods or otherwise attempt to circumvent the rules, your submission may be removed from eligibility at the sole discretion of Outdoor Network.

Read the full Rules and Regulations here.