next mod?
#1
next mod?
I got '99 4.8L, EC, 4x4, auto. That was very underpowered as a daily driver. So I had Jesse tune the ECM, put on a full Mangaflow, modded the stock air box, and put LS1 fans on it. It is a totally different truck. But what next? I was thinkin an 02 ECM with bigger injectors (expensive though). How about an offroad Y pipe, then have the rear O2's and EGR tuned out and lose that junk also? Don't need to go to something major like a blower or turbo, this is just a driver/work truck.
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02 Computer was one of the best things ive done to my truck.. definetely get around to doing that.. Of course there is a thread somewhere around here where Yelo had good luck Tuning a 99.. I however did not
#7
It got 4:10's from the factory with a locking rear. My tune came out good. But I have read that the 99's had small injectors, and if you go to the 02 ECM you need the larger injectors. Yea, I think LT's are next with ORY, then have rear o2s and egr tuned out--but here is where I'm stuck--tune my '99 ecm or just get a tuned 02 (which also means 02 injectors)?
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Originally Posted by redneck45
It got 4:10's from the factory with a locking rear. My tune came out good. But I have read that the 99's had small injectors, and if you go to the 02 ECM you need the larger injectors. Yea, I think LT's are next with ORY, then have rear o2s and egr tuned out--but here is where I'm stuck--tune my '99 ecm or just get a tuned 02 (which also means 02 injectors)?
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