Thread: 4'' intake on an 04?

I was wondering if i mounted the MAF to the TB and then ran the 4'' pipe off of that if that would work? Just wondering cuz i wanna make and intake but would rather use the 4'' than the 3''.

sooooo no?

yes, off the MAF.

I attempted the 4 inch and got codes, went to the 3 inch and couldnt be happier

how would the difference between 3" and 4" matter?

mines 4 inch.....no issues

Mine threw codes due to a issue with the MAF sensor and it did not like the 4 inch. Some people do get lucky with the 4 inch and dont get codes but if it does give you codes just go down to the 3 inch.

Go 4"

well i decided to go 3 inch anyways and this is what i got

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too restrictive.

Originally Posted by Street Wolf

Nice airflow restrictor you got there.

Couldn't have been said better

could someone fill me in on what makes it restrictive?

The more bends the worse the performance...plus the fact it is 3" kills it too.

well i didnt want to cut anything so i put the 90* in to get it down in the fender and i think it has a little more pop over that k&n one that i had in before

so use piping that bends. i'll post pics when i get home

I'm running...

3" 45* bend off the TB into the MAF
3" to 3.5" coupler
piece of 3.5" pipe to a 3.5" bpi Velocity stack with an R2C filter in the fender wall

so the one big bend killed him? Drunkie I'd like to see pics of your setup and any tips you have. I'll be building my own eventually.