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CJR Performance

4.5 (123)

Honda Grom / Monkey ECU Flash

Name: CJR Performance Honda Grom / Monkey ECU Flash - Honda Grom / Monkey ECU Flash
Brand: CJR Performance
SKU: 42001220763848
Price: 99.99 USD
Availability: InStock
Rating: 4.3571 (10 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$99.99$199.99

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Color

Black

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Unlock the full potential of your Honda Monkey/Grom/Super Cub* with a CJR Performance ECU Flash! With OVER 100 DIFFERENT CJR CUSTOM TUNED ECU flashes to choose from, we will make sure your bike is paired to your exact modifications in addit...

Reviews

4.4

14 ratings

Woke up the bike.

Make my Grom more responsive and pull to redline (stock would die off at top of rpm band). Very linear power too. Got the stage 1 with full exhaust and intake.

G.S. · November 26, 2025

Fast shipping Great product cant beat it

Jared · November 21, 2025

Best ECU flash

With CJR ECU I got a very good motor performance.

J. · October 24, 2025

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CJR Performance

4.9 (361)

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Reviews

4.4

14 ratings

Woke up the bike.

Make my Grom more responsive and pull to redline (stock would die off at top of rpm band). Very linear power too. Got the stage 1 with full exhaust and intake.

G.S. · November 26, 2025