Supersprint offers a stainless, full exhaust system, including a Turbo downpipe kit, for the 2012->2017 BMW Grancoupè 650i, and for the 650i x-Drive version as well.
Read more: https://www.supersprint.com/ww-en/bmw-f06-gran-coupe-650i-450-hp-2012-2017.aspx
Built with 70mm oversize diameter tubing, this Supersprint exhaust is the best performance addition for the 4.4l Twin Turbo N63N V8 engine of the 650i, making substantial Hp and torque gains, and a great sound at the same time.
When matched with a ECU reprogramming, the flowing capacity of this Supersprint exhaust is 700 + Hp.
The R&L Turbo Downpipes are made with a set of integrated, built-in HJS Motorsport, 100 cpsi 130mm catalytics (made in Germany), the largest-volume, best flowing performance cats in business.
With this proprietary exhaust design, Supersprint eliminates the power-robbing bottlenecks in the exhaust system, made by overly restrictive, oem cats.
By freeing up this exhaust tract, the efficiency of the twin turbochargers improves by a massive amount, and the high temperature build-up in the engine exhaust port area is reduced considerably, when under heavy use.
This in turn helps the turbo boost pressure to remain more consistent, while the emissions are under control at the same time.
The Supersprint Downpipes also accept the stock exhaust, bolting up directly to the BMW Factory cat-back system, and they are available in a Racing, cat-deleting version, as well.
The installation is straightforward, no modification is required.
Our modular-design allows for fine-tuning of the sound, thanks to the multiple options available.
Installation is easy, fit and finish are top-notch, durability is legendary, as usual.