butt dyno says about 2hp and it's all psycological....if you can feel 2hp, you got a sensitive @ss.....however, for gas milage, it actually got 2-3 mpg more.

04 Black Sedan 6mt / front blinker mod, z tube+k&n panel filter / 18" r/h c2s w/khumos 235/40zr18 / stock airbox mod / s-teins / crank pulley / pre-muffler, what pre-muffler?

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Ditto on the gas mileage. I'm getting 2-3 more mpg and it just put on 20's. I did the same mod a while back and I did not plug the hole. Seems to me air would be sucked in thru the hole, grabbing cold air from the same space a CAI would grab it from.

 

when you took off the power duct pc you visually saw that you opened up a larger intake area....but.....if you look you will see the hood comes down over that area. In stock form it looks like the only air draw would be from the l/8" crack at the leading edge of hood. I removed mine entirely and it did nothing

 

wait... so you are saying removing two pieces engineered for your cars stock intake box resulted in an improvement in performance? hard to believe, but I'll wait for dyno sheets.

 

WOW!! Way to raise a thread from the dead!

 

o dam didn't even see that

 

Nice work on this. Too bad I dont have a stock intake anymore!

 

WOW. 6 year old thread.

 

I took off my power duct today it sounds real nice, i'm debating on putting it back...maybe in the summer when it gets hot and heatsoak would be an issue.

 

almost 7 years - might be a record thread bump

 

I actually cut the resonator off the bottom of the intake box and fabricated another support bracket to help hold it in place. Left the power duct on though. Makes no sense to take that off. Im gonna take it back out though and patch the hole later. Sounds a little better thats all.

 

I dont feel like this would do anything at all except make the intake louder...i also am really skeptical on seeing 2-3mpg difference by doin this. i dont see how i could get 24mpg instead of 21 by takin off part of the factory intake scoop

 

Sean akak XXSEXXXX modified mines,i bought a Z tube and 350Z air bx since the Z box only has 1 hole,In front of the grill He drilled a Hole on the Fiberglass composite and stuck a tube to the air box and added a square funnel behind the grill and presto i am cold air intake with a stock Z intake n K&N drop inn i feel more Horse power than short ram intake and cold air cause no heat soak. Thnx Sean..

 

Can I get more info and pix on the mod that Sean did?
I'd like to try it out.
Thanks

 

^nope, the details are on lockdown! LOL

PM me if you are interested in a custom install (Socal only)