Thread: New air box
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Old 03-22-2012, 02:16 PM   #79
Spark01's Avatar
Joined: Aug 2010
Location: The Netherlands
Oddometer: 305
Originally Posted by cjracer View Post
The RC8 Stack or "Trumpet" as KTM calls it is shorter than the 990 ADV ones.

Thinking is that the shorter stack should let it more air for higher HP#s.

The Longer 990 ADv ones result in more torque.

These will be here soon for testing.

Air filters just showed up so I hope to start shipping out Fri and Sat.
The orginal stacks for the 990 motor (Adv,superduke,SM/T/R) are the same
The RC8 stacks with 2nd flies removed used in a airbox should give a gain starting from 6500rpm till limiter.
But it doesn't loose torque down below.

And the fun part is they cost allmost nothing, i paided 5 euro (6-7 US dollars).

example from a superduke:
'10 990SMT

Spark01 screwed with this post 03-22-2012 at 11:59 PM
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