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TDI Tuning Box for 2015 320D

Warren Press
in BMW 3 Series Forum

Featured Replies

Evening all, 

Just wondering if anyone has the CRTD4 TWIN CHANNEL DIESEL TUNING BOX fitted, and if so what there thoughts? whats the impact to fuel economy?

https://tdi-tuning.com/car/bmw/3-series/320d-187-bhp-190-ps-140-kw-400-nm-295-lbft/crtd4-twin-channel-diesel-tuning-box-chip

Claims to give +60bhp & 65lb/ft! Just seems a bit to go to be true for a plug & play device.

Cheers in advance

  • Quote

    Hi Warren.....welcome to the Forum

    I have previously owned a Tuning Box (on a Honda CRV 2.2 cdti) and unfortunately sold it when I sold the car. It takes about 10 -15 minutes to fit yourself.

    However, in the time that I have it fitted, it vastly improved the driveability of the car, made it more flexible on the transmission (didn't need to change up constantly to maintain road speed), the economy improved by at least 15% and quite frankly cried when I took it off....what a difference it made!

    I fitted it with the intention of improving the economy and this is exactly what it did....I didn't however, buy it with a huge performance increase in mind.

    I would say, go for it, you won't regret it !

  • Quote

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