01 Chev Silv 4.8

I removed the screen the MAF had and it did gain some power, you could actually feel the shifts now. And I was stuck on getting an aftermarket air filter kit, but this mod, a good air filter and a tuner seems like its going to do the job. It seems its already sort of forced air.

What do you guys think? Or would an injen be better?

I drop in filter won't make much of a difference...you need a K&N FIPK or something similar. I took off my original muffler and installed a Borla Turbo in it's place. It worked fine but last week I had a 90 degree piece of pipe installed just after the muffler and had a duel end piece welded on. It now comes out just ahead of the rear tire and I like it much better...I had a rumble in the cab but it's gone and the exhaust is louder when I get on it.

gotta go with a fipk. they rock

01 Chev Silv 4.8

It seems its already sort of forced air.

What do you guys think? Or would an injen be better?


You do not have forced air.. if you did, it would have a supercharger or turbo. That is what forced air is.

FIPK is the way to go. you will notice a differance.

silverado122775:

how are those bosch spark plugs workin out for you? Notice any difference?
I need to replace mine probably the next time I change my oil and I've been lookin at the iridium version which is I think the next step up on the +4.

Thanks for the suggestions probl will get one then...


Should I get the diablosport first?

Go with a custom tune. They are alot better than handhelds and if you further modify your truck you can have it re-tuned.

silverado122775:

how are those bosch spark plugs workin out for you? Notice any difference?
I need to replace mine probably the next time I change my oil and I've been lookin at the iridium version which is I think the next step up on the +4.

I love them. I have never had any problems with them. I have noticed a couple of horses. maybe more in the throttle response.