E46 325/330 Performance Valved Cat-Back Exhaust
- Mfg Part #
- 023536LA02KT 023536LA02KT
- ECS Part #
- ES#4659317
- Brand
-
This product was last offered at the strikethrough price on
06-13-2026
Product Details
When shopping for an exhaust, you'll want to find one that suits your driving style and sound preference. While one part of you wants a loud and aggressive sounding exhaust, another part knows you don't want to wake up the neighborhood or annoy your significant other. Thankfully, Turner Motorsport has developed the answer to this dilemma. This lightweight performance exhaust system features a valved muffler section, allowing you to choose between tame and tasteful or loud and rowdy.
Turner's new Catback Exhaust features a valved rear section designed specifically for the E46—a first for the chassis. This design enables tone and volume control with just one click of a button. During valve-closed operation, the exhaust will emit a nice low tone. With the valve open, you'll receive unrestricted access to sound and power—perfect for when you're at the track or just in the mood to let it rip.
The exhaust features dual 2.0" stainless steel mid-pipes that connect directly to your factory downpipes. Within the mid-pipes is an integrated x-pipe, designed to create a smooth flowing center section with lower amounts of back pressure. This leads to increased performance, balanced flow, and a smoother exhaust tone. The 2.0" mid-pipes crossover and flow into a 3" axle-back section and full 3" valved muffler. The valved muffler features integrated 3" exhaust tips for an aggressive look that fills out your rear diffuser to get the perfect appearance.
Valved exhausts of this caliber are commonplace on newer performance cars, which are high above the price range of a nice E46. Surprisingly, most E46s did feature a vacuum-actuated valved muffler, which opened and closed the exhaust under certain rpm ranges. Unfortunately, nearing twenty years post-production, the factory valve is usually damaged and inoperable. By taking notes from BMW's OEM valved muffler, the engineers at Turner were able to revitalize this design and improve upon it significantly. The final product is a light-weight performance exhaust that features superior valving and great aesthetics!
Featured on the ECS Product YouTube page:
Part Design:
- Turner In-house designed and engineered using FARO ARM laser scanning technology and SolidWorks 3D CAD modeling for precision fitment.
- T304 Stainless Material in a natural finish - 1.25mm wall thickness, back purged and TIG-welded throughout
- 2.0"-3.0" Stainless Steel Mandrel Bent Tubing
- T304 Stainless Steel 12mm barbed exhaust hangers Tig-Welded in OE locations for precise fitment.
- Flanges to mate up to your factory downpipes
- 23 lb weight reduction from factory catback
- Designed for a smoother flow path and less backpressure
Kit Contents:
- 2.0" Mid-section with integrated x-pipe
- New center exhaust brace
- 3.0" Valved muffler with integrated tips
- Valve controller with installation kit and 2 key fob controllers
- New downpipe hardware to replace your seized exhaust studs
- Gaskets, clamps and hardware for installation
Full installation Instructions can be found in the installation tab above.
**Cars without factory exhaust valve will require a vacuum source for the valve controller.** Call to swap out the valve controller with a standalone remote vacuum pump if you prefer not to deal with finding a vacuum source! ES4883843
- 18107504168
- 18107504170
- 18107504171
- 18107516921
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| BMW | E46 | 325Ci | M54 2.5L | Cars without factory exhaust valve will require a vacuum source for the valve controller. |
| BMW | E46 | 325i | M54 2.5L | Cars without factory exhaust valve will require a vacuum source for the valve controller. |
| BMW | E46 | 330Ci | M54 3.0L | Cars without factory exhaust valve will require a vacuum source for the valve controller. |
| BMW | E46 | 330i | M54 3.0L | Cars without factory exhaust valve will require a vacuum source for the valve controller. |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| Copper Exhaust Lock Nut - Priced Each |
|
4 | YES | |
| Exhaust Gasket |
|
2 | YES | |
| Remote Key Fob Switch Set & Exhaust Valve Installation Kit (Single Valve) |
|
1 | YES | |
| E46 325/330 Mid Section With Integrated X Pipe |
|
1 | YES | |
| E46 325/330 Valved Muffler |
|
1 | YES | |
| Exhaust Stud Hex Bolt |
|
4 | YES |
Installation
This Product Is Covered By Our Lifetime Replacement Program
Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.
If you have any questions, would like to learn more or are ready to place a replacement claim, click here!
Return and Exchanges
Need to set up a return? Click here to begin: Return Process
All you need is your order number and email address.
New/Unused Product Returns
ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.
In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.
Refused Packages
Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.
Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.
Return Process
ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!
Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.
Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.
All in store credit balances will expire after one year from the original purchase date.
Shipping Policy
Free Shipping On Orders $49 & Up
Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.
Free Shipping
Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.
The policies listed above are subject to change at any time without notice.
Lifetime Replacement
Want to know more about our Lifetime Replacement program?
Click here to learn more.
Why You Should Shop From ECS Tuning
ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.
Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.
Cancellation Policy
At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.
Hurry, limited stock available!
Prop 65 Warning
