Electir fan/underpullys ??

[99SLT4.3]

I'm interested in finding info. about the electric fans and underpullys.

If you 've done this mod., has it improved gas mileage and or power.

Are there E.F. kits and which U.P. to buy?

[trever1t]

Electric fans=good mod, gain 10-15hp and better economy. Standard on '05 trucks. Kits available to convert.

 

Undersized pulleys = low charging and water pumping, not too good except at the track/highway.

 

Have you already modded the intake, exhaust, and chip?

[99SLT4.3]

I'm bone stock except for a drop-in K&N.

Any info. on converting fan to electric?

I'm looking for a systematic approach to

mod. my truck for better mileage. If I add

a few HP/Torque, it's a bonus.

[trever1t]

Do a muffler change at least. Magnaflow, borla Corsa etc.

I dont have any info on the Efan swap as mine came stock but a lot of guys are putting the '05 efans in their older trucks.

If you go this route you will need a wiring harness to controller or pcm, and a "tune " of course.

[99SLT4.3]

Thanks for the insight!

As far as the exhaust, are

you talking about a system or

just the headers?