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N57 Downpipe De-Cat BMW 640D, 535D, 335D


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Custom Downpipe Kit for BMW 3 Series, 4 Series, 5 Series, 7 Series, X3 Series, X4 Series, X5 Series, X6 Series with N57D30 – 245 HP, N57N – 258 HP, N57Z – 306-313 HP engine.

Downpipe Kit comes only in a De-Cat version.
Pipe diameter at the point of the connection with a middle section – 70 mm

Every part of this racing-focused downpipe replacement is produced using CNC technology and is fully made out of Acid-Resistant Steel. It doesn’t include the Catalytic Converter (CAT) and thereby significantly reduces the back pressure which leads to faster spool, an increase of power, and more aggressive exhaust sound. The bigger the diameter of the downpipe, the easier and quicker the turbocharger is able to lead off the exhaust gas. The design of the GotTuned downpipe is optimized for minimization of variances in cross-section areas in order to get smooth exhaust gas flow and top performance.
Because a downpipe connects a turbocharger and the Catback exhaust, its upgrade is often required for the upgraded turbo to unleash its full power. This upgrade ensures your turbo’s potential is not wasted, it is also a great choice cost-wise!


1. The downpipe parts are CNC produced, ensuring precise, high-quality elements.
2. The 3-inch (76mm) pipe diameter.
3. Removed Catalytic Converter.
4. It is made fully out of Acid-Resistant Steel to ensure long life despite being exposed to toxic exhaust gases.
5. There are 2 sockets for lambda sensors on the assembly.
6. The shape and mounting points fit with the original car parts, no additional work is needed!
7. Clean, strong and attractive welds, inside and out!
8. 100% Plug and Play
9. Limited 2 years warranty
10. ECU tune is necessary to avoid the Check Engine Light.


1. Lowers exhaust temperature, so the charger and the exhaust manifold are more protected.
2. The highest levels of performance and greater reliability under constant high load conditions.
3. Allows for smooth flow of the exhaust gases, giving your engine extra power, as well as sharper throttle response!
4. Lighter than OEM.


BMW 3 Series E90 FL 330d (245HP)
BMW 5 Series F10 530d (245HP)
BMW 5 Series GT F07 530d (245HP)
BMW 7 Series F01 730d (245HP)
BMW X5 E70 FL xDrive30d (245HP)
BMW X6 E71 xDrive30d (245HP)
BMW M57 E90, E91, E92, E93 325d 330d N57 2007-2013 – 204, 245 Hp
BMW F07, F10, F11 525d, 530d, 535d N57 2009-2013 – 204, 245, 299, 313 Hp
BMW E70 X5 30dx, 40dx N57, N57S 2009-2013 – 245, 306 Hp
BMW E71 X6 30dx, 40dx N57, N57S 2009-2014 – 245- 306 Hp
BMW F25 X3 30dx, 35dx N57N, N57Z 2009-2016 – 258, 313 Hp
BMW F26 X4 30dx, 35dx N57N, N57Z 2013-2016
BMW F01, F02 730d N57 2007-2012 – 245 Hp

It is compatible with engines:

N57D30 – 245 HP
N57N – 258 HP
N57Z – 306-313 HP

Downpipe doesn’t match the Euro 6 version with the SCR module (AdBlue).


For downpipes without catalytic converter or with 100/200-cell catalytic converter, if the second post-catalytic lambda sensor exists, the control unit may display an error message. This does not rectrict driving operation, because first lambda sensor is present for the motor control. The second lambda sensor is only used to monitor the catalyst’s effectiveness, and this check can be programmed out through modifying the chip’s software.
Most of the cars up to Euro 3 Emissioncode do not have post-cat sensors, therefore require no adjustments to avoid the alarm.
In case of catalytic converters, the washcoat content is significantly increased and has a very high oxygen storage capacity. This means, that errors can be avoided. While the EOBD Catalysts are tested up to Euro 4, their durability and use up to Euro 6 is given.
In case of Euro 5 and 6 vehicles, a catalyst with ECE selection is needed, to avoid the above points.
GotTuned sportcats run a 100 or 200-cell high flow cat which passes road legal emissions tests, while de-cat pipes are for RACE USE ONLY and are NOT road legal.


We need usually ~ 14 working days to perform and send this KIT.


Upgraded Turbo GTB2571VK Stage3 MFS GEN II BMW 325D, 330D, 430D, 530D, 730D, X3, X4, X5

BMW N57D30, N57D30TOP Upgraded Turbos – 640D F12, 535D F10, 335D F30



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