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Old 10-10-2012, 07:53 PM
Join Date: Apr 2005
Location: Bellevue,WA
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X5m/X6m downpipes Supersprint vs Akrapovic vs Agency Power

So I am in the process of getting downpipes but am really torn on which one to get.

It seems like Agency Power you get the most out of the downpipes as far as power(up to 20+hp). Akrapovic (+12hp) Not sure about supersprint.
But then the finish, material, and just the overall look of the downpipes goes to akrapovic or supersprint.

Akrapovic and supesrpint are the more expensive ones, but i feel as if, this is an important part of the car and wouldnt mind spending the extra 1k for this part.

What do you guys think/suggest?

check out the pics from left to right(supersprint, agency power, akrapovic)
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Old 10-11-2012, 09:32 AM
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Location: X5world
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Old 10-14-2012, 08:36 PM
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Location: Alberta
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The Akra is a no brainer - welds and construction absolutely top notch.

As far as the HP, that would depend on your tune.

Please - no supersprint !
| Vorsteiner front splitter | ADV-7 22" | ESS | Akra Catless DP's | Akra Evo Exhaust | KW V3 Coilovers | Lux V3 H8 | HR TRAK spacers 20mm |
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Old 12-22-2012, 04:38 AM
Join Date: Dec 2012
Location: Anchorage, AK
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The pics of the Agency Power that your showing are actually the AR design and they don't look that great IMO. Here's the link;

http://www.ardesign.info/store/ar-de...htmlHere's what the agency power's downpipes look like and I find them better than AR design as they have resonators and are a full 3 inch all the way.

Agency Power Downpipes BMW X5M X6M xDrive50i 09-12

Another one you can consider is Active Autowerkes which is similarly priced but a tad more.


Lastly, the cheapest ones I seen are the Ultimate Racing ones and they don't have the flex section so may cause stress on the motor over time.


Supposedly Gintani makes downpipes as well and were in the works but I can't seem to find any listed on their site maybe special order only.....
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Old 10-24-2013, 10:23 PM
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Location: Canada
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i put on the full akra system complete with the stainless downpipes and i did an ESS upgrade. its mental. the turbo whine is a little annoying but whatever
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