ARM Motorsports - AMG GT 3.5" CATTED DOWNPIPES - C190 GT/GTS/GTC/GTR M178
- Description
- Fitment
- Refund Policy
HIGHLIGHTS
• Faster Turbo Spool
• Aggressive Exhaust Note
• Lower Under-Hood Temperatures
• 100% Bolt-On Installation
PROFILE
The factory AMG GT downpipes are highly restrictive, designed primarily for economy and noise reduction rather than performance. As power levels increase, these restrictions lead to excessive backpressure, higher exhaust gas temperatures, and reduced turbo efficiency.
The ARM AMG GT C190 3.5" Downpipes are engineered to remove these limitations and unlock the true performance potential of the M178 twin-turbo V8. By dramatically improving exhaust flow directly after the turbochargers, these downpipes deliver faster spool, sharper throttle response, and substantial horsepower and torque gains when paired with tuning.
Designed as one of the best power-per-dollar upgrades for the AMG GT, GTS, GTC, and GTR, the ARM C190 AMG GT Downpipes support aggressive street driving, track use, and high-performance builds while maintaining precise OEM-level fitment.
CONSTRUCTION
The ARM AMG GT Downpipes are constructed of SS304 stainless steel to ensure strength and weld integrity for the life of your C190 AMG GT, backed by our ARM Lifetime Warranty. The ARM AMG GT Downpipes start at the turbochargers with a 3.5" V-Band flange. This style flange allows the ARM AMG GT Downpipes to connect to the OEM turbos, or any upgraded turbos that are compatible with the OEM AMG GT downpipes. 
The ARM AMG GT Downpipes incorporate two 200 cell race catalysts to reduce emissions and fumes on your M178 equipped AMG GT, while giving it a free flowing and aggressive exhaust note. The ARM AMG GT Downpipes transition to a 3" diameter to allow clearance through the tunnels down to the lower 3.5" sections of the ARM AMG GT Downpipes. 
The upper sections of the ARM AMG GT Downpipes incorporate a cross-brace design which links both downpipes together increasing rigidity and reducing movement under load for improved stability and long-term durability. Both downpipes feature integrated pre- and post-catalyst O2 sensor bungs, ensuring compatibility with factory oxygen sensors and maintaining proper exhaust gas monitoring.
The ARM AMG GT Downpipes utilize a CNC machined ball-and-socket exhaust connection allowing angular movement and secure sealing between the upper and lower sections of the downpipes. The lower 3.5" sections improve the tone of the M178 exhaust note further, giving your C190 AMG GT the sound it deserves. 
The ARM AMG GT Downpipes utilize OEM-style midpipe connections in order to connect with the factory catback section, or any aftermarket exhaust that mates up to the OEM downpipes. One adapter has a ball-and-socket connection and the other is a standard slip-fit connection, just like OEM.
IN THE BOX
• 2x ARM AMG GT 3.5" Downpipe Lower Sections
• 1x ARM Slip-Fit Adapter
• 2x Ball-and-Socket Clamps
FITMENT GUIDE
| Make | Chassis | Model | Engine |
| MERCEDEZ-BENZ |
C190 | AMG GT | M178 |
| MERCEDEZ-BENZ |
C190 |
AMG GTS | M178 |
| MERCEDEZ-BENZ |
C190 | AMG GTC | M178 |
| MERCEDEZ-BENZ | C190 | AMG GTR | M178 |
| MERCEDEZ-BENZ | C190 | AMG GTR Pro | M178 |
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.
