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BMW N54 3" Catless Downpipes (135i, 335i)
$271.00
$449.00
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40%
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Product Description
Compatibility:
- BMW 135i (2008-2012) - Direct fit.
- BMW 335i (2006-2012) - Direct fit.
- BMW 535i (2008-2010) - Compatible with some models.
- BMW Z4 sDrive35i (2009-2016) - Direct fit for N54 engine variants.
Features:
1. Elevate your N54-powered BMW 335i with 3" downpipes.
2. These downpipes eliminate the restrictive OEM converters found on the stock downpipes, allowing for improved exhaust flow, which in turn increases power and torque. As higher boost levels generate more heat, the downpipes enable your AWD N54 to accommodate Stage 2 tunes and beyond.
3. Constructed from 3" stainless steel, these downpipes are designed to optimize exhaust flow from the turbochargers and reduce to 2.5" to perfectly match the OEM midpipes. Our 335i downpipes are specifically engineered to fit your AWD N54 platform.
4. Each downpipe includes two O2 sensor bungs, allowing for the factory BMW O2 sensors to be reinstalled. This enables the ECU to monitor the air/fuel mixture through the exhaust. Please note that these downpipes are catless, so an ECU tune or CEL fix will be necessary to prevent a check engine light from appearing on the instrument panel.
Specifics:
- **Condition:** 100% Brand New
- **Material:** High-Quality T-304 Stainless Steel
- **Thickness:** 1.59mm (16-gauge)
- **Tube Inlet Diameter:** 3" V-Band Inlet
- **Tube Outlet Diameter:** 2.5" Flange Outlet
- **Pipe Diameter:** 3.0'' (76mm)
- **Horsepower Increase:** Approximately 10-15 HP
Fitment Restrictions:
- Fits both RHD and LHD models; does not fit XI models.
- Compatible with 3.0L Turbocharged Engines only.
- Fits all 335i Coupes, Convertibles, and Sedans; will NOT fit AWD models.
- Compatible with BMW N54 135i / 335i 3.0L Twin Turbo (2007-2010).
- Compatible with BMW N54 E90/E91/E92/E93/E82/135i/335i Twin Turbo (2007-2010).
*(NOTE: Does not fit 2007 BMW 335i; does not fit 2009 BMW 335i Base Coupe 2-Door 3.0L.)*
- Compatible with BMW E92 335is (2011-2013).
- Compatible with BMW E82 135i (2008-2010).
- Compatible with BMW E90/E91/E92/E93 N54B30 motors.
- Fits both RHD and LHD; does NOT fit XI models.
What is Included:
- 2 x Downpipes
- 2 x Gaskets
- 4 x Bolts
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Do I need special tools for installation?
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While basic hand tools such as wrenches, sockets, and screwdrivers are typically required for installation, some systems may require specialized tools depending on your vehicle model. Our installation manual provides detailed instructions, including a list of necessary tools. If you're unsure about the installation process, you can always refer to our helpful video guides on our YouTube Channel or seek assistance from a professional mechanic.
Will a new exhaust system void my warranty?
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Installing an aftermarket exhaust system generally does not void your vehicle's factory warranty, as long as the system meets the required specifications and is installed correctly. However, laws can vary by manufacturer and region, so we recommend checking your warranty documentation or contacting your dealership for specific details. Our products are designed to enhance performance without compromising your vehicle’s integrity.
How do I choose the right system for my car?
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To find the right exhaust system, check your vehicle's make, model, and year, as compatibility varies. Use our website's filtering tool to narrow down options, or contact our support team for personalized recommendations.
How often should I inspect my exhaust system?
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We recommend inspecting your exhaust system at least once a year or whenever you notice changes in your vehicle’s performance, such as increased noise or a decrease in fuel efficiency. Regular checks can help identify any issues early and maintain optimal performance.
Do you offer custom exhaust solutions?
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Yes, we can provide custom exhaust solutions tailored to your specific vehicle and performance needs. Contact our support team to discuss your requirements, and we’ll work with you to create the perfect exhaust system.
See it in action
Matthew L (2015 BMW 435i)
I ordered the N55 intake and the valved cat-back exhaust, and it was by far the best sound I've ever heard. I cant recommend this brand enough!
BMW N54 3" Catless Downpipes (135i, 335i)
Frequently Asked Questions
Find answers to common questions about our products, shipping, returns, and more.
How do I place an order?
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To place an order, simply browse our product selection and click on the item you wish to purchase. Choose any specific options or customizations, then click the "Add to Cart" button. Once you’re ready to finalize your purchase, proceed to your cart, review your items, and click "Checkout." Fill in your shipping and payment information, then confirm your order. You will receive a confirmation email shortly after your order is placed. If you have any questions, feel free to contact our support team at info@tactixdesigns.com.
What payment methods do you accept?
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We accept major credit cards, PayPal, Shop Pay, and Apple Pay for your convenience and security.
How long does shipping take?
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We ship orders in batches, so you can expect your items to arrive within one to two weeks after placing your order. If you need your products sooner, you have the option to select premium shipping at checkout for faster delivery. Rest assured, we strive to process and ship your order as quickly as possible!
What is your return policy?
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We offer a two-year guarantee on all our products, ensuring your satisfaction and peace of mind. If anything goes wrong within this warranty period, simply send us proof of the issue, and we'll work with you to resolve it. Whether it’s a replacement or repair, our support team is here to assist you. For further assistance, please contact us at info@tactixdesigns.com