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★★★★★ 4.9/5 · 150+ happy customers No cure, no pay 24-month warranty Worldwide shipping

All EMM tuning paths

Evinrude E-TEC
75 HP → 90 HP

Unlock the full rated output your engine block was built for. We reflash the EMM to the 90 HP version, no engine work, no new parts.

+15 HP (20%)
Model years 2007 – 2020

Check if my engine qualifies

Evinrude E-TEC EMM

+15 HP

Same block, different label

The 75 and 90 HP E-TEC are the classic example of a software-limited engine. Same block, same hardware, same gearcase. The 75 HP version is simply held back in software. A reflash gives you the full 90 HP the block was engineered to deliver.

Typical part numbers 586320 586321 5008557

Your exact eligibility depends on your specific EMM part number — send it with the form and we confirm it before anything is booked.

How the 90 HP tune works

1

Check eligibility

Send us your EMM part number through the form below. We confirm whether your block supports 90 HP, usually within one business day.

2

Get your cables

For a remote tune you need a Windows laptop at the boat, plus a diagnostic cable and a bootstrap cable. Use your own cables or buy the kit from us, and we send it before the session.

3

Tuned live at your dock

At a time you choose, you are at the boat and we connect to your laptop and reflash the EMM to 90 HP. It usually takes under an hour, and the EMM stays on the engine.

4

Full power, same session

Disconnect the cables and run the engine. It now delivers the full 90 HP.

You can also send the EMM in. Mail-in works worldwide by DHL Express, and we typically have it reflashed and back in the post within about three days of arrival. Choose remote or mail-in on the form below.

Simple, fixed pricing

Check eligibility first using the form below.

No shipping

Remote reflash

€199

Ex. VAT · fixed price

Or €275 with our bootstrap + cable kit

75 → 90 HP reflash
Your EMM never leaves the boat
Diagnostic + bootstrap cable — own or buy

See how remote works

Mail-in reflash

€199

Ex. VAT · fixed price

75 → 90 HP reflash
DHL Express return
Add a diagnostic cable for €250

Check eligibility

Does my engine qualify for 90 HP?

Fill in your details below. We'll check your part number against our database and get back to you.

How would you like it done?

Remote — no shipping We tune it live while it stays on your boat Mail-in Send us your EMM, we return it tuned

Your name

Email address

Phone number (optional)

Engine model

EMM part number

Do you have a diagnostic + bootstrap cable?

Preferred session date Preferred contact date

Preferred time & timezone

Different engine?

Evinrude E-TEC EMM

Evinrude E-TEC EMM

Evinrude E-TEC EMM

Evinrude E-TEC EMM

40 HP 60 HP + valve

Why tune with Hardware Care

Get it done by the people who actually know these EMMs.

150+ reviews

Rated by boaters worldwide on Google

100+

EMMs tuned

Across the E-TEC platforms we cover

We know these units inside out

We repair Evinrude EMMs every day, so your tune is done by the same specialists who open, fix and re-seal these modules, not a generic tuning shop.

What customers say

★★★★★

★★★★★

Fast, kept well informed, fixed the issue. Had to pay VAT charge when importing back to the UK which I hadn't factored into the costs, but still better value than a new one.

Google review · vor 1 J.

robert eichholz

★★★★★

My Evinrude E-Tec 50 / 2014, driven only less than 150h, started signalling "Check Engine". The test program showed "Injectors voltage over 55V". Found Hardware Care and on theis homepage I could insert the type and "ser...

Google review · vor 1 J.

★★★★★

had my evinrude etec blow the SAC circuit in its computer looked at every option all i could find was a new emm for 3k or for less then half that for a rebuild by hardware care, I had my doubts and was abit worried sendi...

Google review · vor 2 J.

★★★★★

My Evinrude Etec 50hp failed completely and the issue was traced to a failure of the engine management system (EMM) which is both complex and expensive to repair or replace. A couple of acquaintances who had first hand e...

Google review · vor 2 J.

★★★★★

I have sent 2 EMM's to Hardware Care for repair in the past year. Both times I was very satisfied with the Excellent Service provided. I will not hesitate to deal with Hardware Care any time I need to, in future. Danie -...

Google review · vor 2 J.

★★★★★

2008 Evinrude E-Tec 60hp: All the EMM repair shops in the U.S. said this "EMM could not be repaired and that my engine is trash". I reached out to Hardware Care; they stepped me through their process and I'm sure glad I...

Google review · vor 2 J.

★★★★★

The repair service is much easier, less expensive, and quicker than I'd expected. Our 2017 Evinrude Etec 40 hp motor's EMM went out from California to the Netherlands 12/28/23 and returned 1/31/23. Total cost including...

Google review · vor 2 J.

★★★★★

Because of the difference in time, some communications from me got there when they were asleep! None the less they responded to each of my many questions over the last 4 Months. The time was extended understandably due...

Google review · vor 2 J.

★★★★★

I was very pleased when i found out that it was possible to let my ECU fixed for a third of the cost of a new one, and also in the Netherlands, were i live. When you send your ECU in they send you updates about the progr...

Google review · vor 2 J.

stephen mccalvin

★★★★★

Repair time was exactly as they predicted. Shipping there and back was super easy as they arranged the pickup from my office in Florida. Once returned I installed the repaired EMM and my boat fired right up with no is...

Google review · vor 2 J.

View all Google reviews →

Ready for the repair?

Submit your EMM and start the process.