TruCrane Motorsports  |  SKU: S55DP

ARM Motorsports Catted Downpipe BMW M3 M4 M2C F80 F82 F87C S55

$59700
Box 1
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Genuine Parts
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HIGHLIGHTS

• Up to +30whp / 30wtq
• Enhanced Exhaust Note
• 304 Stainless Steel
• Improved Turbo Spool
  

PROFILE

The ARM F82 M4 Downpipes are the ultimate solution for improving power, throttle response, and exhaust note on your S55 powered M4.  Our goal for the ARM M4 Downpipes was to provide a solution that would maximize power and torque, fit perfectly, and sound extraordinary.
 

 











Catless downpipes are considered a standard upgrade for any F82 M4 owner looking to safely push their S55 engine beyond basic Stage 1 tuning.  With Stage 2 and up tuning, higher boost increases back-pressure at the OEM catalysts and chokes the S55's turbochargers, causing them to work harder and shortening their life. 
 

 
The ARM F82 M4 Downpipes relieve the stressful back-pressure caused by high-boost tunes, allowing the exhaust to flow freely, increasing power and torque, all while extending the longevity of your S55's turbochargers.  On our test car, after installing our F82 downpipes and switching to a Stage 2 flash we made 543whp and 547wtq, this is 73whp and 126wtq gain over the stock results!
 
F80 M3 Downpipes Dyno Stage 2
 
Even with the Resonated ARM F82 M4 Downpipes installed on your stock-tune S55, you will notice an increase in power, torque and responsiveness.  Not to mention the incredible, head-turning sounds your M4 will make under part and full throttle.
  


RUMBLE, NOT RASP.

The ARM Resonated S55 Downpipes give your F82 M4 an unparalleled sound that even other M4 owners will notice.  The deep, aggressive tone of the ARM F82 M4 Resonated Downpipes will stand out next to the all too familiar high-pitched rasp of other catless downpipes.  Our 4" resonators are installed in the perfect location to enhance the sound of your S55 without compromising the precise fitment of our M4 downpipes.

 


CONSTRUCTION

Precision CNC machined v-band flanges offer a smooth transition of exhaust gasses from the the turbochargers to the ARM S55 Downpipes.  The body of the 3" ARM M4 Downpipes are constructed of SS304 Stainless-Steel and are threaded smoothly and perfectly though the space given by BMW towards the mid-pipe section.
 

 
Any downpipes that bolt up directly to the OEM mid-pipes must reduce to the 2.5"  to meet the size of the OEM mid-pipes.  Some aftermarket  downpipes use an abrupt, short reducer which causes turbulence in the exhaust gasses.  The ARM F82 M4 Downpipes feature a smooth, gradual transition from the 3" inlet to the 2.5" exit for optimum exhaust flow.  
 

 
The ARM M4 Downpipes are a massive improvement over the OEM S55 downpipes, with precise fitment and brilliant finish the ARM S55 Resonated Downpipes are the perfect solution for your S55 project. Our goal for the ARM F82 M4 Downpipes was to provide a solution that would maximize power/torque, fit perfectly, and sound uniquely extraordinary.  We are so confident that you'll agree we've achieved this, we back every set of our ARM F82 M4 Resonated Downpipes with a 30 Day Money-Back Guarantee and the ARM Lifetime Free-Replacement Warranty.
  

IN THE BOX

• ARM F80 M3 Resonated Downpipes
• CNC Machined Bracket for Front-Turbo Downpipe
• 4x Downpipe to Mid-Pipe Bolts/Nuts
• ARM Lifetime Replacement Warranty
 

FITMENT GUIDE


Make Model Submodel Engine
BMW F80 M3 S55 3.0L
BMW F82 M4 S55 3.0L
BMW F83 M4 S55 3.0L
BMW F87 M2 Competition 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 or fitment. The warranty entitles you to a replacement unit.

This product is for Off-Road Use Only. Items sold for off-road use only are illegal to use on public roads in most states and provinces. This product is intended for racing vehicles which may never be used on a public road.

Shipping & Returns

Some items will ship directly from the manufacturer or distributor. We will process your order as soon as we can, to ensure minimal delay. Please note that sometimes our inventory system may show an item in stock, while the item is out of stock with the manufacturer or distributor. Should this happen, we'll contact the manufacturer to get a best estimate of when the item will ship out and reach out to you regarding next steps. 

Please note that if the item is dropped shipped, the manufacturer may change the shipping carrier beyond our control. We will do our best to ensure you receive the same carrier and shipping time as purchased through us.

For international orders the buyer is responsible for any import duties or tariffs. This includes items shipped from abroad to you, such as KW, PTB

 Items that show delivery status as "Delivered" that are Lost or Stolen Are Customers Responsibility.

You must reach out to us directly for all returns. If the product is unused and uninstalled, we can offer you a refund, or exchange. Returns must be initiated within 30 days(TCM Products have 60 days) of the product being ordered. Once the return has been approved, it is up to you to pack and return the product to the address provided. Return shipping costs are the buyers responsibility. Returns are subject to a 20% restocking fee. Items must be in like new condition.

Fuel items: we cannot accept returns on used fuel systems. This includes, HPFP & LPFP fuel pumps, port injection rails and ethanol analyzer kits.

Please note special order items or items that are built to order, once the item is in production the order cannot be cancelled or returned. Some examples of these products are Clutch Kits, Turbo charger kits, any ApexBuilt Product. If you are unsure if your product would be a special order item, please reach out to us. Contact US 

TruCrane Motorsports(TruCrane Motorsports LLC) is not responsible for any products lost or damaged during the return shipping process.

Cancellations

Cancellations on orders of $1000 paid for using Shopify Pay Installments/Affirm are subject to a 3% cancelation fee. This is due to the large order processing fee associated with these sort of payments. TruCrane Motorsports, will cover the additional fees. 

Cancellations on orders over $2000 paid for using Shop Pay, Credit Card, or PayPal are subject to a 2% cancelation fee. 


Any purchase on our website constitutes acceptance of these conditions.

Warranty

Terms and Conditions of TCM Products that state Lifetime Warranty on their product page. These products have a lifetime warranty against manufacture defects.

This covers things like cracks, and weld failures. 

The warranty also does not cover:

- wear items, such as replacing a filter due to age.

- It does not cover dents, scratches, or holes from road debris.

- Improper install; rubbing against something or other issues from faulty installation. 

- finishes, so if the finish wears, fades or chips off over time.

- catalytic converter blow out or damaged due to burbles/pop and crackle tunes.

 

If your item arrives damaged, please email us immediately along with photos of the product, damage and the shipping box. 

FAQs

Questions? Check out or full FAQs here.

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Shipping Notice

Icon of a truck with a check mark, indicating delivery or verification.

Some oversized, heavy, or specialty items may incur additional shipping charges based on your delivery location. If this applies to your order, our team will contact you after checkout with the updated cost. Orders will not ship until additional charges are confirmed and paid.

Tariff Notice – Japan Shipments

Effective August 29, this product will be subject to a 15% tariff when imported into the United States from Japan. Any tariff charges billed will be the customer’s responsibility.

TruCrane Motorsports

We are a specialty parts provider and performance shop based out of the Washington, DC area. We have been heavily involved in the car scene of DC, Maryland, & Virginia for well over a decade, including working with the SCCA, and multiple local car clubs and our local racetracks. TruCrane Motorsports specializes in aftermarket support for BMWs but we offer services for all cars. 

At TruCrane Motorsports you'll find a level of customer service and support, beyond that of any other shop.

We have grown from selling parts and performing installations and maintenance, to also providing our own product line, TCM. TCM is the shop brand for TruCrane Motorsports. We took the same principles of our shop and applied them to our brand. That is why all TCM products have a fitment guarantee and lifetime warranty. We offer competitive pricing, to ensure you're not overpaying for a part.

We strive to provide quality products at a cost effective price. 

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