This is a stupid question i guess in my opinion but i was wondering i finally bought my f150 harley and the motor had the cold air intake in an open box... Which is better or louder? Open box or a closed Box?

 

Any Suggestions? does it make it go faster one way or another? what do you guys think?

 

I don't think either are louder than the other. The primary soucre of intake noise is the intake pipe and the air pulses in it. Its why stock intakes have baffles attached to the pipe.

As to faster, its going to be minimal (not enough to make a lot of difference by itself) and it depends on who makes it.

 

Thanks alot... so by far most then just leave it how it is...i guess... im still trying to find Stats on the engine part of the 2003 F-150 Harley.

 

340 HP from the factory.

 

wow!!! didnt even know.. Preety Badass lol thanks...

 

Wow sorry about these stupid questions its that i can never find anything on the net... but i was wondering what exhaust system did the 03 HD come with?

 

https://www.ford-trucks.com/specs/20...rley_f150.html
https://www.ford-trucks.com/specs/20...ey_f150_1.html

"Uniquely tuned high performance exhaust system with dual inlet/dual outlet muffler and "slash-cut" 3-inch chrome tips"

 

Another Dumb Question Gasoline Wise Only Premium Right? For The Hd? Or What Are You Guys Opinions?

 

Yes, premium only. Its in the owners manual.

 

Thank you very much you have been very helpful..

 

Is it really worth the waste? does it make a difference preformance wise?

 

With the supercharger the compression is up and it needs higher octane in order to prevent pre-detonation. Too much ignition timing with too low an octane fuel and its like playing with fire.... eventually you'll get burned. Its especially critical to run high octane (91 minimum but try for 93) in the winter.

 

alright i see what your saying yea i rather not risk it ill just pay off the extra 30 cents