Burger Motorsports JB4 - B8 S4 / S5 / SQ5

Burger Motorsports JB4 - B8 S4 / S5 / SQ5

Marsoni

M251S

$265.00

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

Burger Motorsports JB4 - B8 S4 / S5 / SQ5Gains starting at 45hp and 65ft lb This easy to install plug and play tuner attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance. Includes full CANbus allowing the JB4 to access and incorporate all engine data in it's tuning strategies, incorporate unique safety features such as keeping boost pressure low until oil and water is up to temperature to provide proper

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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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Have a JD 280 and it was not running well at all. Surging, not running good overall, where as previously it was. I used this and after a few hours of running, it cleared up very well and runs like a "Deere" now. Product line is still, one of the best out there. Bought again for my chain saw and use it in my weed wacker too.

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Reviewed in the United States on July 7, 2025

Verified Purchase

M. Chulick

Belleville, US

★★★★★ 4

Delivered quickly

Size: 16 Fl Oz (Pack of 1), Style: Individual

Just trying to keep my small engines running with this awful California fuel

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Reviewed in the United States on December 4, 2025

Verified Purchase