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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
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Description
BMW S55 MIDPIPE UPGRADE - 3.5" RESONATED30 Day Money Back Guarantee IN STOCK HIGHLIGHTS Up to +20whp 30wtq Improved Exhaust Note 304 Stainless Steel Faster Turbo Spool Fits OEM and Aftermarket Mufflers PROFILE Introducing the ARM Motorsports S55 Single Midpipe Upgrade for the F8X platform, the ultimate solution for S55 enthusiasts seeking to enhance the power and sound from their S55 powered BMW. This S55 Midpipe upgrade delivers improved exhaust flow and an incredible exhaust note due to
- 30 Day Money-Back Guarantee | IN STOCK
HIGHLIGHTS
• Up to +20whp / 30wtq
• Improved Exhaust Note
• 304 Stainless Steel
• Improved Exhaust Note
• 304 Stainless Steel
• Faster Turbo Spool
• Fits OEM and Aftermarket Mufflers
PROFILE
Introducing the ARM Motorsports S55 Single Midpipe Upgrade for the F8X platform, the ultimate solution for S55 enthusiasts seeking to enhance the power and sound from their S55-powered BMW. This S55 Midpipe upgrade delivers improved exhaust flow and an incredible exhaust note due to the resonated 3.5" design. Check out the clips below to hear the ARM S55 Midpipe paired with the ARM S55 Resonated Downpipes.
CONSTRUCTION
Crafted from 304 stainless steel, the ARM S55 Midpipe Upgrade is built to last. Its mandrel-bent tubing ensures smooth, unrestricted flow, while the lightweight design of only 17lbs reduces overall weight of the exhaust system by 15lbs. When paired with the ARM S55 Track Exhaust, you shave an incredible 40lbs off compared to the OEM exhaust system.The ARM S55 Single Midpipe starts at the downpipe connections with a precision Y-pipe. This allows you to connect the ARM S55 Midpipe to any downpipe upgrade that fits the OEM S55 Midpipe, including the ARM S55 Downpipes.
This section of the ARM S55 Midpipe includes a 4.5" resonator to tune the tone of the exhaust into a deeper, more desirable range, as the S55 is notorious for having a high-pitched, raspy exhaust note. Paired with the ARM S55 Downpipes, the ARM S55 Midpipe will make your F8X one of the best sounding on the road.
Due to the larger size of the ARM S55 Midpipe, the OEM under-brace cannot be utilized. To address this, the ARM S55 Midpipe includes a specially designed under-brace that is specifically engineered to fit with the larger midpipe. The under brace included in the ARM S55 Midpipe Kit is designed with precision and manufactured from 6061 aluminum to ensure strength, durability, and a perfect fit, while keeping the weight to a minimum. Installation of the under brace is a simple bolt-on process and mounts directly to the factory mounting points, ensuring a secure and stable fit.
IN THE BOX
• ARM S55 Midpipe
• CNC Machined Brace
• 5x Exhaust Clamps
• CNC Machined Brace
• 5x Exhaust Clamps
FITMENT GUIDE
The ARM S55 Midpipe Upgrade will fit any downpipes that connect to the OEM midpipes.
| Make | Model | Submodel | Engine |
|---|---|---|---|
| BMW | F80 | M3 | S55 3.0L |
| BMW | F82 | M4 | S55 3.0L |
| BMW | F83 | M4 | S55 3.0L |
ARM MOTORSPORTS LIFETIME WARRANTY
Every ARM Motorsports product is backed by a lifetime warranty which is automatically issued at the time of purchase. Your warranty protects you against any defects in craftsmanship. The warranty entitles you to a replacement unit.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.2 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
I need to stop buying these
Size: 1 Pound
They're super sour and I end up burning my tongue from eating too many in one sitting lol
You get a good amount for the money, a bag lasted me a couple weeks and I was munching daily.
If you love sour candy and are looking for a fix you can't go wrong with these
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Reviewed in the United States on May 23, 2025
★★★★★ 5
STILL the best sour candy around since the 90's!!!
Size: 1 Pound
Still the best sour candy out there! Please never stop making this candy, whoever you are! And seller, please do not stop selling this candy in the United States!! It reminds me of my childhood memories in the 90's, walking to the store to get a brown paper bag full of this exact candy!!! Oh, how I miss the good ol days!!!
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Deliciously sour!
Size: 1 Pound
Just what I was looking for. Super sour. Don’t eat to many tho for you run the risk of canker sores from the citric acid.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Certainly taste like the real deal.
Size: 1 Pound
Didn’t get poisoned. 👍
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Reviewed in the United States on March 27, 2026
★★★★★ 4
Authentic cry baby tears
Size: 1 Pound
I LOVE this candy and eat waaaay more than I should. My only minor gripe is that both times I've ordered from this company the bad has been slightly underweight- less than half an ounce off so not a huge deal, but for almost $13 a point I would rather it be spot on. It is the actual candy though and not a knock off so I am happy about that at least.
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Reviewed in the United States on May 19, 2026