4" Single Turbo Catless Downpipe Exhaust For 2012-2021 BMW F-Chassis M135i M2 M235i 335i 435i X Drive F32 F33 F36 F22 F23 N55
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Experience the perfect blend of quality engineering and exceptional value with these high-performance Downpipe. Manufactured from durable T-304 stainless steel with precision CNC-machined flanges and TIG/MIG welded construction, they deliver superior durability and flow characteristics. Computerized mandrel bending technology ensures smooth exhaust airflow for improved scavenging and reduced back pressure.
Features:
- Piping Diameter: 4"
- Package Included: 1x Downpipe
- Precision CNC machined turbocharger V-Band flange
- TIG weld for strength and durability
- Straight-through design allows more air through to improve horsepower and overall performance
- Mandrel Bent 4" piping With Smooth transition to the exhaust system
- Higher Max Horsepower Power Curve
- Higher Initial Torque Curve - The torque curve hits faster and higher and longer
- Better throttle response and faster turbo spool-up times
- Expected gains of 20whp and 30wtq when used with a Stage 2 Tune
- Professional Installation is Highly Recommended (No Instruction Included)
- For 2013-2015 BMW F20 F21 M135i
- For 2014-2016 BMW F22 F23 M235i
- For 2016-Present BMW F87 M2
- For 2014-2016 F32 F33 435i/435i xDrive N55 Engine Models
- All N55 single turbo motors from 2013+
| VEHICLE NAME | YEAR | ENGINE |
|---|---|---|
| BMW 435i | 2014~2016 | 3.0L |
| BMW 435i xDrive | 2014~2016 | 3.0L |
| BMW M135i | 2013~2015 | 3.0L |
| BMW M2 | 2016~2021|2023~2024 | 3.0L |
| BMW M235i | 2014~2016 | 3.0L |
SHIPPING & DELIVERY
Fast Processing & Reliable Transit
- Processing: Orders are processed and shipped from the nearest warehouse within 24 hours.
- Delivery: Estimated delivery time is approximately 4 to 5 business days.
RETURNS & EXCHANGES
30-Day Hassle-Free Policy
- Return Window: We offer a 30-day return policy from the date of delivery.
- Process: To initiate a return or exchange, please contact our customer service team first to receive authorization and instructions.
WARRANTY
2-Year Limited Replacement Warranty
- Duration: All products are backed by a 2-year limited warranty.
- Coverage: This warranty covers manufacturing defects and product failures under normal use, and provides a replacement for qualified cases (repairs are not performed).
CUSTOMER SUPPORT
We’re Here to Help – Contact Us First
- Priority Contact: For any order-related issues—including returns, warranty claims, or general inquiries—please contact us first before taking further action. We are committed to resolving your concern promptly.
- Feedback Notice: If you are unsatisfied, we kindly ask that you allow us an opportunity to address the issue before leaving neutral or negative feedback.
- Email Support: You can reach us at support@SAMEXHAUST.com.
Attention
Products on this site are for off-road/racing use only and are not legal for public roads where emissions laws apply.
Professional installation recommended. Removing emissions equipment (DPF, CAT, SCR, DOC) requires deleting related sensors and a compatible tuner to avoid engine codes.
Performance gains may vary—no guarantees.
