For ultimate tuning potential, additional weight reduction, and a great racing sound, we offer stainless steel down pipes without cats. These high-flow down pipes require ECU reprogramming and are a perfect fit with the Evolution performance exhaust system.When installing Akrapovic aftermarket optional down pipes with sports catalytic converters or without catalytic converters, which are developed for use on closed tracks only, remapping the ECU is mandatory. When installing Akrapovic aftermarket exhaust system that was developed for use on closed tracks, we recommend remapping the ECU in order to prevent potential check engine lightâ warning signals.
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TECHNICAL DATA
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UNIT | STOCK | AKRAPOVIČ | MAX. GAIN |
| maximum power |
kW
HP (m)
HP (i)
|
392.6 at 6150 rpm
533.8 at 6150 rpm
526.5 at 6150 rpm
|
399.9 at 5900 rpm
543.7 at 5900 rpm
536.3 at 5900 rpm
|
+ 44.5 at 4700 rpm
+ 60.5 at 4700 rpm
+ 59.7 at 4700 rpm
|
| maximum torque |
Nm
lb-ft
|
704.7 at 2250 rpm
519.8 at 2250 rpm
|
803 at 2400 rpm
592.3 at 2400 rpm
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+ 114.3 at 3800 rpm
+ 84.3 at 3800 rpm
|
| weight |
kg
lb
|
10.2
22.5
|
4.6
10.1
|
- 5.6
- 12.3
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| static noise level |
dB
rpm
|
95
3750
|
99.4
3750
|
+ 4.4
0
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| measured with: BMW X6 M (E71) 2010 | ||||