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Old 12-09-2009, 02:46 PM   #31
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9853 has more bottom.

9901 doesn't have a fat bottom like 9853.

I have both pipes, and I can see that 9853 is leaner (smaller diameter muffler) compared to 9901.

Another pipe you might want to try is 9886.

I personally like 9901 the most.
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Old 12-09-2009, 05:45 PM   #32
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this thread help me a lot to fix my ride..! now i'm fixed with the 9901 tuned pipe but i'm not sure about manifold..i'm not loocking for crazy high speed run..im running on small/medium track so i need more punch from the corner! thx
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Old 12-09-2009, 06:07 PM   #33
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Originally Posted by mvo View Post
If you're coming out for nitro challenge in feb, get a 53 super strong. everyone in az runs them (including me). 53 = more top 9901 = more bottom and mileage. +4 gets better mileage, ninja has more power..........now choose
I will be out for the nitro challange. I will have both both motors with me, as well as a speed.

I love the tracks that the Dirt " Joey " puts together. They flow extremely well. The tracks we have in town are similar, put half of the tracks take his nitro challange design and try to make it bigger, in terms of jumps that is.

I loved the way my ninja ran at the pit. I want to see what I can get out of the Nova now. You think it is possible to get similar low end out the the plus 4 when compared to the ninja ????????
Fusion Motorsports----- www.novarossiusa.com
AB Mods ----- www.abmods.com
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Old 12-09-2009, 06:07 PM   #34
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try the 41021 header
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Old 12-09-2009, 06:17 PM   #35
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9853/41021 header= great bottom, great snap and good top.

9901/41021 header= much softer bottom and good top.

maybe try the 41020 header with the 9901 for more bottom out of that pipe. both of my friends run mp9's with the 9901/41021 combo and have way less bottom than my rc8b even though their cars are much lighter!
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