High‑flow transverse muffler with premium sound‑tuning for balanced tone
Factory‑style exhaust valve retained — uses OEM valve motor for proper operation
Dual polished 4″ 304 stainless steel exhaust tips with laser‑etched aFe POWER logos
Factory‑style V‑band flanges and band clamps for secure leak‑free seal
Uses all OEM hanger locations for direct bolt‑on installation — no cutting/modification
Hand TIG‑welded construction for strength, durability, and corrosion resistance
Specifications
Part Number: 49‑36334‑P
System Type: Mach Force‑XP Cat‑Back Exhaust
Material: 304 stainless steel
Main Tubing Diameter: 3.00″ → 2.50″
Exit Style: Split dual‑rear exit
Tip Finish: Polished 304 stainless steel
Tip Diameter: 4″ each
Sound Profile: Aggressive but refined tone with strong mid‑range character
Expected Gains: ~+14 HP and +13 lb‑ft torque (aFe dyno claims)
Included Components
1x Cat‑back exhaust assembly
1x High‑flow transverse muffler
2x Polished 4″ stainless steel exhaust tips
V‑band flanges and high‑quality band clamps
Hardware kit for OEM hanger and install points
Product Description
The aFe 49‑36334‑P Mach Force‑XP Cat‑Back Exhaust System is a premium performance exhaust engineered for turbocharged **BMW 340i and 440i** models equipped with the B58 3.0L inline‑six engine. Designed with mandrel‑bent 304 stainless steel tubing and a high‑flow transverse muffler, this system enhances exhaust flow for improved horsepower and torque while producing a rich and aggressive tone suited for both spirited driving and daily use. The factory‑style valve is retained, allowing the stock exhaust actuator to control back‑pressure and make full use of the vehicle’s intended performance characteristics without triggering error codes.
Featuring dual polished 4″ stainless steel tips with laser‑etched aFe POWER logos and a direct bolt‑on installation using all factory hanger locations, this cat‑back exhaust delivers both visual and auditory upgrades with no cutting or modification required. Robust construction with V‑band flanges and high‑quality band clamps ensures a leak‑free seal and long‑lasting performance. Fitment is confirmed for 2016–2018 **BMW 340i** and 2017–2020 **BMW 440i** models at the time of this listing.
*Parts sold are for USA spec vehicles, please contact us to verify fitment on international models.
· · · SHIPPING · · ·
Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
Canada customers - If eBay does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.
· · · RETURNS · · ·
Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.
Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
Any returns received installed, mounted, used or missing components will be subject to return fee's.
· · · PAYMENTS · · ·
We accept all payment methods through eBay's payment system
PayPal, and all major credit cards/debit cards are accepted.
· · · FEEDBACK · · ·
Customer satisfaction is a top priority for us. If you have any issues with your order, please let us know. We will make every effort to resolve any problems and ensure you are satisfied.
· · · CONTACT US · · ·
We appreciate your business. If you have any questions, please message us through eBay and we will respond within 24 hours on weekdays. Feel free to browse our eBay store for other available items. Thank you again for choosing to shop with us!
