Air box mod and RPM?

[chadman]

For the guys that hve done the air box mod, do you get an RPM increase on the top end?

 

[icebreaker]

On my 2011 xtx with Ulmers pc5 and air box mod I gained 500rpm.

 

[chadman]

Anybody else have any RPM increase?

 

[87gtNOS]

500rpm??!!! ok then.

 

[turbo tow-er]

I got a 700rpm gain from exaust mod fuel controller and airbox. Ram air no way you got a 500rpm gain from five little bulleyesl

 

[chadman]

So I take it that from just an air box mod I might see a 100or200 rpm increase possibly? I know that you can get a gain from changing the exhaust but, I wasn't sure about the airbox.

 

[APEX 06]

You may get a lean spot.

 

[Mad Russian]

I got 400rpm increase on 2011 xtx with pc5 and my own ram air design.