Does the Akrapovic Titanium Slip-On Line for F40 fit the BMW M135i?

Yes, this system is built specifically for the F40 BMW M135i xDrive and replaces the rear section of the factory exhaust with a titanium slip-on muffler and carbon-fiber tailpipes.

Is this a simple bolt-on installation?

No, installing this system requires cutting the stock exhaust system before the new section can be fitted. Professional installation is strongly recommended, and the installation itself takes approximately 210 minutes.

Is this exhaust street legal?

Yes, on qualifying cars. It carries ECE type approval for 2020 and later model year F40 M135i vehicles equipped with an Otto/gasoline particulate filter, which covers the large majority of production for this generation.

How much power and weight does it add?

The Akrapovic Titanium Slip-On Line cuts 9.4 kg (55.6%) from the stock exhaust system's weight and adds +3.3 kW (+4.5 hp) at 5,350 rpm along with +3.3 Nm of torque at 5,300 rpm, measured against the factory system.

Was the BMW M135i F40 sold in the United States?

No, the F40 generation 1 Series and M135i were sold in Europe and other global markets but were never offered new in the United States. This system fits privately imported or overseas-delivered F40 M135i vehicles.

Can I upgrade further with a link pipe?

Yes, an optional Evolution Link Pipe Set in stainless steel is available separately and pairs with this Slip-On Line system for additional performance gains beyond what the muffler alone provides.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Product Inquiry

Description

Akrapovic Titanium Slip-On Line for F40 BMW M135i

The Akrapovic Titanium Slip-On Line for the F40 BMW M135i replaces the rear section of the factory exhaust with a titanium slip-on muffler and carbon-fiber tailpipes, built around a specially engineered Y-split for optimized flow and an exhaust valve tuned for a sound character that emphasizes high frequencies. Installing this system requires cutting the stock exhaust, so it’s a more involved upgrade than a pure bolt-on, but the payoff is a genuine weight cut and a sharper exhaust note without giving up ECE street-legal status on qualifying cars.

Features

Sheds about 56% of the factory exhaust weight for sharper response and better balance
Gains up to 4hp and 2ft-lbs over the stock system
Exhaust valve housing cast in-house at Akrapovič’s own foundry
Hand-welded titanium slip-on line, race-developed and built as a direct bolt-on
Signature Akrapovic sound, deep under load with no drone at highway speed
EC type-approved for the listed platform

Applications

BMW M135i: F40 | 2020 to 2024 | 2.0L Turbocharged inline-4

Notes

Installing this system requires cutting the stock exhaust system, so professional installation is strongly recommended
ECE type approval applies to 2020 and later model year cars equipped with an Otto/gasoline particulate filter, which covers the large majority of F40 M135i production
Manufacturer installation instructions: download the PDF.
For any questions on fitment or specifications, Contact us and we will confirm the correct part for your build.

Frequently Asked Questions

Does the Akrapovic Titanium Slip-On Line for F40 fit the BMW M135i? Yes, this system is built specifically for the F40 BMW M135i xDrive and replaces the rear section of the factory exhaust with a titanium slip-on muffler and carbon-fiber tailpipes.
Is this a simple bolt-on installation? No, installing this system requires cutting the stock exhaust system before the new section can be fitted. Professional installation is strongly recommended, and the installation itself takes approximately 210 minutes.
Is this exhaust street legal? Yes, on qualifying cars. It carries ECE type approval for 2020 and later model year F40 M135i vehicles equipped with an Otto/gasoline particulate filter, which covers the large majority of production for this generation.
How much power and weight does it add? The Akrapovic Titanium Slip-On Line cuts 9.4 kg (55.6%) from the stock exhaust system’s weight and adds +3.3 kW (+4.5 hp) at 5,350 rpm along with +3.3 Nm of torque at 5,300 rpm, measured against the factory system.
Was the BMW M135i F40 sold in the United States? No, the F40 generation 1 Series and M135i were sold in Europe and other global markets but were never offered new in the United States. This system fits privately imported or overseas-delivered F40 M135i vehicles.
Can I upgrade further with a link pipe? Yes, an optional Evolution Link Pipe Set in stainless steel is available separately and pairs with this Slip-On Line system for additional performance gains beyond what the muffler alone provides.

About Akrapovic

Akrapovic is a manufacturer of premium exhaust systems for motorcycles and performance cars, recognized globally for its use of advanced technology and high-quality materials. The company’s state-of-the-art facilities in Slovenia include an in-house titanium foundry and metallurgical laboratory, giving it full control over the materials and processes behind every component it produces. With over 1,500 employees and distribution across more than eighty countries, Akrapovic’s roots in motorsport run deep. The knowledge gained from supporting MotoGP, WorldSBK, MXGP, DTM, and other racing programs feeds directly into the street and performance car products it builds, including the Titanium Slip-On Line for the BMW M135i.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Product Inquiry

First Name (*required)

Last Name (*required)

Your E-Mail (*required)

Telephone Number (*required)

Country (*required)

Vehicle Year / Make / Model (*required)

Please Explain What do you want to do with your vehicle

Additional Information (optional)

I agree to the terms & conditions and privacy policy and to have Bulletproof Automotive LLC contact me for promotion, marketing and other purposes via email, phone or SMS message.

Akrapovic Titanium Slip-On Line for F40 BMW M135i [S-BM/T/15H]

Guaranteed Safe Checkout

Akrapovic Titanium Slip-On Line for F40 BMW M135i

Features

Applications

Notes

Frequently Asked Questions

About Akrapovic

Reviews