- Description
- Fitment
- Refund Policy
S55 FBO KIT
Create a custom FBO Kit for your S55 powered vehicle! Customize your full bolt on kit exactly how you want it for your specific build. Downpipes are a required option for the FBO kit and included with every kit.
S55 Downpipes
The foundation of the ARM S55 FBO Kit is our S55 Downpipes. The ARM S55 Downpipes are the ultimate solution for improving power, throttle response, and exhaust note on your S55-powered BMW. Our goal for the ARM S55 Downpipes was to provide downpipes that would maximize power and torque, fit perfectly, and sound extraordinary.
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 S55 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 S55 Downpipes feature a smooth, gradual transition from the 3" inlet to the 2.5" exit for optimum exhaust flow.
S55 Aluminum Charge pipes
The ARM S55 Charge Pipes allow you to maximize power on your S55 powered vehicle by securing all the boost that your S55 is making. The stock S55 charge pipes are notorious for developing hairline fractures at their plastic seams. These fractures or cracks are unnoticeable to the naked eye, but under boost pressure they open up leaking the desired charged air into the engine bay, and consequently can rob your S55 of it's full power potential. In addition, these leaks can trigger your S55's turbochargers to work harder to hit and maintain target boost pressure, potentially wearing them out sooner.

S55 Silicone Charge pipes
The ARM S55 Silicone Charge Pipes allow you to maximize power on your S55 powered BMW by replacing the OEM charge pipes which are known for cracking. Silicone charge pipes benefit the S55 engine over their aluminum counterparts by providing an extra layer of insulation. Aluminum charge pipes conduct heat very easily between the engine bay and the charge air going from the S55's turbos to the intercooler, while silicone charge pipes provide a significant improvement in insulation between these two areas.S55 Intake System
The focus of the ARM S55 Intake is performance, period. We're not here to offer fancy pipes that look better than the stock intake but perform the same, or worse. Our purpose in developing an intake system for the F8X platform was to create something that would outperform everything else on the market, especially in the most demanding builds. It looks good, it sounds amazing, and most importantly it makes your S55 breathe better.With a 3.5" inside diameter intake runners, the ARM S55 Intake System is the largest diameter intake system available for the S55 engine. Whether you're running the stock turbos or upgraded turbos, if you're looking for serious performance, the ARM S55 Intake system is your answer.
The ARM S55 Intake is constructed of 6 layer reinforced silicone tubing. Utilizing this material allows us to maximize the space allowed by BMW, especially where there is the least clearance, between the strut brace and the radiator.
Each side of the ARM Intake is uniquely constructed. The passenger side maximizes the size of the large 3.5" air filters while making a smooth, uninterrupted transition down to the stock S55 turbo inlet.
S55 J Pipe
Complete your S55 upgraded charge piping with the ARM S55 J Pipe! This J Pipe is the final piece of piping on the S55 before the charge air enters the intake manifold. BMW constructed the OEM J Pipe of plastic which is prone to cracking an detaching from the throttle body under boost.
The ARM S55 J Pipe is constructed of T6061 aluminum for a durable replacement that will hold up to even the most demanding builds.
The ARM S55 J Pipe is designed to lock onto the stock throttle body using a CNC machined connector. This connector incorporates a locking C-clip design which replaces BMW's one-time use plastic strip to create a secure connection to the throttle body.
Included with the ARM S55 J Pipe are two pre-plugged 1/8 NPT fittings which allows for post-intercooler methanol or nitrous injection. This is the preferred location of injection for many S55 tuners. J-Pipes with only one methanol port are not able to supply a sufficient amount of methanol for advancing the timing enough to make any substantial power increases.
For reinstalling your S55 vacuum line, the ARM J Pipe has a precisely machined vacuum line connection port to prevent any leaks, a common issue on many other S55 J Pipes.

S55 Exhaust Tips
The ARM F8X Exhaust Tips give your F8X a stunning modified look that installs in minutes and is backed by the ARM Limited Lifetime Warranty. The large 90mm ARM F8X Exhaust Tips dwarf the small tame look of the stock M3 tips to give your F80 a more complete and aggressive look. ARM F8X Exhaust Tips are a direct replacement for the stock F8X exhaust and do not require any trimming or welding. They are secured using a single hex bolt which minimizes any unsightly extra clamps or hardware to keep a clean and stunning look. These tips slip over and bolt down over the existing oem exhaust tips.

ARM MOTORSPORTS LIFETIME
WARRANTY
Returns
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. All items are subject to 15% restocking fee from the manufacturer.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Additional non-returnable items:
Gift cards
Downloadable software products
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
If you would like to start a return please click here
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at info@amtuning.ca.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Labor Fees (if applicable)
AM Tuning Canada is not responsible for, and shall not be liable for, any labor fees, installation charges, removal charges, diagnostic fees, or other service-related costs incurred by the customer or any third party in connection with the installation, removal, modification, servicing, or use of any products purchased from AM Tuning Canada. Unless expressly agreed to in writing by AM Tuning Canada, all such labor and service costs are the sole responsibility of the customer.
Exchanges (if applicable)
To start an exchange, click here
Non-refundable items
The following items are non-refundable and non-returnable once purchased: oils, fuel or oil additives, filters, tuning cables, OBDeleven products, Braum seats, spark plugs, coil packs, and similar consumable, wheel spacers, wheels bolts, license plate brackets, electronic tuning components and any other product subject to discretion of AM Tuning Canada.
Other products from brands such as MHD, Bootmod3, Ecutek, Braum racing, Novitec are also non-refundable and non-returnable.
All sales of these items are final and are subject to the policies and discretion of AM Tuning. By completing a purchase, the customer acknowledges and agrees to these terms.
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