}
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The Akrapovič BMW M440i (G22, G23) Slip-On Line (Titanium) (Requires BMW Part #18308686640) (part S-BM/T/31H) is a...
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The Akrapovič BMW M440i (G22, G23) Slip-On Line (Titanium) (Requires BMW Part #18308686640) (part S-BM/T/31H) is a Slip-On Line exhaust for the BMW M440i (G22/G23). On the Akrapovič dyno it added 4.6 hp and 9.1 lb-ft, tested on a BMW M440I (G22, G23).
Benefits
A Slip-On Line replaces the rear silencer section of the exhaust and bolts on behind the factory catalytic converters. It is the most direct way to change how the car sounds and how much the back of the car weighs, without touching the emissions hardware up front. The valved design means one exhaust can be refined on the motorway and loud on a back road or track. Akrapovič notes that no ECU remap is needed for this setup. An optional Akrapovič Sound Kit is offered for this car to add more control over the exhaust sound. Akrapovič also offers optional link pipes for this car, intended for closed-course use. Akrapovič has versions and fitment notes for cars with and without a particulate filter, so check the engine and chassis in the table.
Materials and Construction
The titanium construction saves weight compared with the steel factory parts. Titanium also handles high exhaust temperatures and takes on its distinctive colouring with use. Some of the parts are cast in Akrapovič's own titanium foundry. The carbon-fibre parts are finished by hand.
Akrapovič designs and builds its exhausts in Slovenia. The company is known for its titanium work, its carbon-fibre parts and the sound tuning it does for each car.
Features
- Titanium construction
- Akrapovič dyno result: +4.6 hp at 2,650 rpm
- Akrapovič dyno result: +9.1 lb-ft at 2,650 rpm
- Weighs 29.6 lb (13.4 kg), 9.6 lb (24.6%) less than stock
- Valved for a quiet cruise and a louder sound under load
- Natural titanium finish
- Direct fit to the factory mounting points
- Developed on the Akrapovič dyno and in its sound lab
What Is Included
- Akrapovič BMW M440i (G22, G23) Slip-On Line (Titanium) (Requires BMW Part #18308686640) (S-BM/T/31H)
Specs
- Part number: S-BM/T/31H
- Brand: Akrapovič
- Material: titanium
- Finish: natural titanium
- Type: Slip-On Line exhaust
- Akrapovič product weight: 29.6 lb (13.4 kg)
- Weight saving vs. stock: 9.6 lb (4.4 kg), 24.6%
- Installation time: about 210 minutes
- Shipping dimensions: 57 x 40 x 14 in (145 x 102 x 36 cm)
- Shipping weight: 61 lb (27.7 kg)
Fitment Notes
- Fits the US-market vehicles listed in the table below.
- Professional installation is recommended.
| Year | Make | Model | Chassis | Engine |
|---|---|---|---|---|
| 2021-2027 | BMW | M440i | G22/G23 | 3.0L Turbo I6 |
If you have any fitment questions, please feel free to reach out to our team via the contact methods below. If you are contacting us for any order status updates, please give us a call, or email us. We are a lean operation bringing you the best shopping experience possible. We are working on your orders as quickly as we can. We thank you for your patience.
- Call:
- Please reach out to us at (310) 231-0292 for sales inquiries if you are in the United States, Canada, Mexico.
- Email:
- For more in-depth product questions, fitment questions, product inquiries please email our performance specialists at online@autotalent.com.
- All other inquiries:
- Please direct your inquiries to the chat functionality on our website.
Returns Policy
If a product is ordered and not wanted, the UNUSED item can be returned for a 25% restocking fee unless otherwise specified. In some cases, we may offer the ability to return the item to us for a lesser restocking fee and then keep the balance as a store credit. To return an item, it must be in brand new condition with original packaging.
We cannot accept a return on special ordered or custom items.
Shipping is non refundable in either direction unless approved by AutoTalent. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the AutoTalent facility are shipped via FedEx, USPS, or USPS. Some packages shipped from the manufacturer may or may not require signatures for package release.
Special Order Items
Some items may be special order specifically for the customer’s vehicle. These items generally require a deposit or paid in full. Once this deposit amount is notified to the customer and they agree to order the special order item, the deposit becomes non-refundable. These special order items cannot be returned or resold. Cancellations are not allowed on special order parts.
AutoTalent DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return. We will not cover any expenses related to the product or installation, and you may be required to purchase a replacement.
** All cancellations that are requested that are NOT due to items not being in stock or delayed by the manufacturer are subject to a 5% processing fee. When you place an order with us we pay credit card fees that are NOT returned back to us. We will absorb these fees if we do not have the item in stock OR if you agree to the original ETA and that ETA is NOT met. If you decide to cancel for any other reason you will not receive this 5% fee back
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based.
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