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Old 08-21-2008, 10:20 AM   #1
Predator04
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R1 full race exhaust

I have several R1's and am now testing Ackra vs Graves full stainless systems will get back to you guys in a couple days with the results. The control bike is an 07 and will be tested with both systems on the same day on the same dyno with the same maps I am interested to see how this comes out.
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Old 08-21-2008, 12:06 PM   #2
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Interesting.......

Did you remove the servo motor to the exup? If so, what did you put in it's place so that you don't get the error code?
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Old 08-21-2008, 02:58 PM   #3
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Close the loop with a relay. Search www.R1-forum.com for the $12 fix, or they sell a pre fab one for $100.

If not engine light will be on, and throw error code 17 and 18. But not hurt the engine.
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Old 08-21-2008, 05:53 PM   #4
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I was just curious if he used the 10k ohm resistor I read about on R1-forum. Nobody replied.
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Old 08-21-2008, 07:04 PM   #5
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$1,500 for 2.4 hp! Sounds like a bargin!!!
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Old 08-22-2008, 01:25 PM   #6
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Quote:
Originally Posted by Slowkat View Post
$1,500 for 2.4 hp! Sounds like a bargin!!!
I am kinda lost? I got both systems for less than 2800 dollars shipped. Also the jury is still out on the graves system I will have it hear tommorow but the ackra system yeilded a 14 rwhp gain was pleasantly more than ackra claimed. 14 rwhp is significantly more than 2.4 hp my friend and a very good kick in the seat of the riders pants.
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Old 08-27-2008, 06:56 PM   #7
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Did you dyno the same day before and after the exhaust was added?
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Old 08-28-2008, 11:15 AM   #8
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Both are great systems but I would be willing to bet the Akro comes out on top.....


I gained 10hp with mine before mapping..
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