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Burger Motorsports JB4 - 2015+ M3 / M4 S55
Burger Motorsports JB4 - 2015+ M3 / M4 S55
Burger Motorsports JB4 - 2015+ M3 / M4 S55
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Burger Motorsports JB4 - 2015+ M3 / M4 S55

Marsoni M251S
Sale price$399.50
Pay 4 payments of $99.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Burger Motorsports JB4 - 2015+ M3 / M4 S55The ultimate tune for your S55 powered vehicle, the JB4 allows you to go from factory stock to full race, and everywhere in between, with the push of a button on your steering wheel. The JB4 installs and removes easily and includes many unique features not found in any other tune including user adjustable 1st and 2nd gear boost limiting, map switching in dash, electronic wastegate control, ethanol fuel support, and built in advanced CANbus based
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  • 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]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 1445 reviews
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Product Reviews
P
Verified Purchase
Patrick Korth
Port Orchard, US
★★★★★ 5
Phone holder
Color: Black
I’ve been using it for about a month and a half now and I love it no issues. I also bought my son one and he loved it too no issues whatsoever on both of them 5 star
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
C
Verified Purchase
Cologne_kay
Birmingham, US
★★★★★ 4
Very hard to take off when it’s set, but great product.
Color: Black
I like it, thanks..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
B
Verified Purchase
Brandy
Waukegan, US
★★★★★ 1
Not a good buy
Straight up, this thing is horrible. Doesn’t hold on to anything; especially if you add your phone, it just drops, damaging your screen. Don’t buy. Had no grip whatsoever or adjustability.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
V
Verified Purchase
Vellyvel
Houston, US
★★★★★ 5
Unbeatable
Color: Black
THis is so worth it! Excellent suction, grip and fuctionalty. Great price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
G
Verified Purchase
gmarlin
Lowell, US
★★★★★ 3
Looked good
Color: Black
It was a gift, so I don't have anything to say about it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026

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