Haltech Elite 550 ECU / Elite 550 ECU + Plug and Pin Set

Haltech Elite 550 ECU / Elite 550 ECU + Plug and Pin Set

Marsoni

M251S

$747.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Haltech Elite 550 ECU / Elite 550 ECU + Plug and Pin SetECU OVERVIEW The Elite 550 is a simple yet powerful ECU ideal for basic 4 to 8 cylinder or 1 2 rotor engine applications. Suitable for either naturally aspirated or forced induction engines the Elite 550 gives you full control over fuel delivery, ignition timing and boost levels. This robust, competitively priced ECU features an environmentally sealed, waterproof case, 4 fuel and 4 ignition channels and a 4 BAR internal MAP sensor. T he Elite 550 ECU

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Your Haltech Elite 550 ECU / Elite 550 ECU + Plug and Pin Set orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
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I’ve tried many other types of fuel injector cleaners but this brand is amazing. I ran my truck down to less than a quarter of a tank of gas and poured it into the tank. I then drove 30 miles to an appointment and spent an hour in the appointment on the way home I noticed my mpg had gone up significantly. My truck tells me how many miles per gallon. I’m getting as I drive. I had gotten a code and I replaced the mass air filter and found a slight crack in an air hose, which I replaced that help with my code a little bit, but cleaning the fuel injectors with this product made such a significant difference. I just simply had a hard time believing it, but it’s true. I’m done with all those other brands of fuel injector cleaners which never really seemed to help much if you really want an amazing experience give this product to try.

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Reviewed in the United States on August 4, 2025

Verified Purchase

fixrides

Belleville, US

★★★★★ 5

Direct fit

Style: Standard Air Filter

Good price and direct fit, good quality, compatible with factory filter, easy install for DIY service.

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Reviewed in the United States on May 24, 2026

Verified Purchase