Active Autowerke X3M and X4M Valved Rear Axle-back Exhaust

BMW F97 X3M / F98 X4M Rear Exhaust

Due to continued requests from our customers, Active Autowerke is pleased to release the Active Autowerke Valved Rear Exhaust for the X3M and X4M. While these SUVs have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the X3M/X4M which comprises this rear axle-back valved exhaust, a single mid-pipe and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a F97/F98 with an amazing sound. You will feel like you are driving a true M-car again.

At Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by the introduction of F97/F98 BMW X3M/X4M collection rear exhaust.

The Active Autowerke F97/F98 rear exhaust was carefully engineered to increase the sound level over the factory X3M and X4M exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the overly quiet sound of the stock OEM exhaust while designing an exhaust worthy for an "M" car. We believe our rear exhaust combined with our mid-pipe and catted downpipes offers the best combination of sound and performance versus any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!

PLEASE NOTE - we do offer a version of this rear exhaust for those who only wish to replace their stock rear section (so keeping stock midpipes) but there may be an additional subsequent charge if you later move to an Active or other midpipe as the connecting pipes may have to be replaced. Also you should note that the dramatic difference in sound will only come with replacing the midpipe - the rear offers an upgrade but is more subtle.

Key features

• Made in the USA
• 304 Stainless Steel
• Low, Deep Sound with stock Valve Control
  
• Each exhaust test-fit on our F97/F98 Exhaust Fixture
• Guaranteed to fit all F97/F98 BMW X3M/X4M
  
• Includes all necessary installation hardware
  

Active Autowerke GUARANTEES that each and every F97/F98 X3M and X4M Rear Exhaust Section will be a precise fit. Every Active Autowerke X3M/X4M Rear Exhaust Section is test-fitted on our in-house F97/F98 Exhaust Fixture as part of our quality control measures.

The items installed or applied to vehicles are intended strictly for off-road use only and track vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use under Environmental Regulatory Agency (ERA) laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free to contact us here with your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across the continental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.