- Description
- Fitment
- Refund Policy
Introducing the MAD S58 Catted Downpipes
The perfect upgrade for BMW X3M and X4M owners looking to unlock more performance and a deeper, more aggressive exhaust note without triggering a check engine light.
Crafted from high-quality 304 stainless steel, these downpipes are built to withstand extreme heat and demanding driving conditions. The smooth mandrel-bent design maximizes exhaust flow, resulting in noticeable gains in horsepower, torque, and throttle response.
Equipped with 300 cell high-flow catalytic converters, the MAD S58 Catted Downpipes enhance exhaust sound and overall drivability while keeping the check engine light off. They bolt directly to the factory exhaust system with no cutting or welding required, making installation straightforward and hassle-free. They are also fully compatible with most aftermarket exhaust systems, allowing you to build the setup that best suits your goals.
No CEL Guarantee
If you receive a check engine light related to the catalytic converters, MAD will replace the downpipes free of charge.
Dont settle for stock performance. Upgrade to the MAD S58 300 Cell Race Catted Downpipes and experience the full potential of your BMW X3M or X4M.
Warranty Coverage
The "No CEL" guarantee is valid for 2 years from the date of purchase.
The lifetime warranty still applies in cases of manufacturer defects, including cracks in the piping or welds.
Race Use Only
Features:
-
300 CEL catalytic converters
-
No check engine light guarantee
-
Compatible with right-hand drive and left-hand drive vehicles
-
Smooth bends for maximum airflow without excessive drone
-
Up to 30HP increase on stock turbos, with even greater gains on upgraded turbo setups
-
Lifetime warranty on defects and fitment
-
Ships in 1 to 2 business days
-
Spot-on fitment
-
Flex section for added durability
NOTE: Downpipe gaskets are not included and must be purchased separately for installation.
Fitment:
-
2020+ BMW X3M F97
-
2020+ BMW X3M Competition F97
-
2020+ BMW X4M F98
-
2020+ BMW X4M Competition F98
Emissions Disclaimer
This product is not legal for sale or use on pollution-controlled vehicles operated on public roads, highways, or streets. It is intended for off-road, race, or closed-course competition use only, where such modifications are permitted.
By purchasing this product, you acknowledge and agree that:
-
You are responsible for compliance with all applicable emissions laws and regulations.
-
MAD and its affiliates disclaim any liability for improper or unlawful use of this product.
-
Use of this part on public roads may violate the Federal Clean Air Act (42 U.S.C. § 7522) and similar state laws.
Please check your local laws before purchase and installation.
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.
