Its Official: Air Box Delete mod improves Milage

[Mark42]

I've been keeping record of the fuel and miles since I bought this Firebird in August. The car was getting a consistent 26 mpg with automatic and 3.08 gears. I do about 3/4 highway, and 1/4 non-highway driving.

After removing the air box and using a Cool Blue filter, the MPG is a steady 27. (27.11 to be precise)

It helps if I keep my foot out of it. :eek:

[truekoa]

Re: Its Official: Air Box Delete mod improves Milage

are you driving in the same manner as you did before the mod?

[Fondle]

Re: Its Official: Air Box Delete mod improves Milage

what do you mean air box delete?

[venom3300]

Re: Its Official: Air Box Delete mod improves Milage

what do you mean air box delete?

the silencer right behind ur lid if ur still running stock setup

[Fondle]

Re: Its Official: Air Box Delete mod improves Milage

o i thought he meant the whole lid,

[97rs4life]

Re: Its Official: Air Box Delete mod improves Milage

or it could be your filter that you changed, you can't claim one thing if you changed multiple things at once. Unless you had the filter before and I am reading it wrong

[vr4gasm]

Re: Its Official: Air Box Delete mod improves Milage

or it could be your filter that you changed, you can't claim one thing if you changed multiple things at once. Unless you had the filter before and I am reading it wrong

i second this..

[Mark42]

Re: Its Official: Air Box Delete mod improves Milage

It is a "combo" mod. Add new low restriction filter, and eliminate the air box all as a single mod. BTW, I really don't see the need for grinding out the ribs on the inside of the filter housing. There is plenty of space, although the fins could be trimmed back in the area where the outlet neck is.

[Mark42]

Re: Its Official: Air Box Delete mod improves Milage

are you driving in the same manner as you did before the mod?

Yes, same commute, same speeds, same time.

[whitdog54]

Re: Its Official: Air Box Delete mod improves Milage

I think the point of grinding out the fins is to allow air to flow more smoothly (hence the smoother the faster, in return more power)

[inheritthefire]

Re: Its Official: Air Box Delete mod improves Milage

I just put on my K&N FIPK, and I've got to say that moving from an air silencer delete to the FIPK is not only night and day, but the FIPK gets me even BETTER gas mileage.

[heavychevy383]

Re: Its Official: Air Box Delete mod improves Milage

I just put on my K&N FIPK, and I've got to say that moving from an air silencer delete to the FIPK is not only night and day, but the FIPK gets me even BETTER gas mileage.

*what year you got? is yours a 6? i ask because i called k&n & they said they didn't offer anything but a o.e. replacement flat filter for the stock airbox on all the 3.8's, no fipk kti for the v6 acording to the guy at k&n? ...maybe he could have ment no fipk for the '98v6 with the stupid angled intake?? -thanks

[venom3300]

Re: Its Official: Air Box Delete mod improves Milage

*what year you got? is yours a 6? i ask because i called k&n & they said they didn't offer anything but a o.e. replacement flat filter for the stock airbox on all the 3.8's, no fipk kti for the v6 acording to the guy at k&n? ...maybe he could have ment no fipk for the '98v6 with the stupid angled intake?? -thanks

he probably meant the 98... cuz i have seen them on 99+

[inheritthefire]

Re: Its Official: Air Box Delete mod improves Milage

I've got a 2000 Firebird, and yes, with the six (hence being a member on this website!:rock:)

The part number is 57-3041, I think, and it fits 99-02 firebirds and camaros, no option for the 98 because of the angled throttle body.

[97rs4life]

Re: Its Official: Air Box Delete mod improves Milage

yup, 99-02 K&N intake is made.