4.6HighPerformance

i recently took my k&N intake off, and put the stock 1, now i bought the jlt. installed it and the car runs bad.... it runs like its always in 5th gear with no power and sounds weird, even idles wierd... so i put the stock intake on and its back to normal... with the jlt do i have to put it on a dyno and tune it?? i have a diablosport predator, would i be able to do it myself??? or what other alternatives do i have.... please help.


thanks, tony

howarmat

You need a specific tune for the JLT

Eleanor06

+1

DeStonn

Call a tuner and tell them your mods and they can send you a tune

4.6HighPerformance

thanks, na im just gonna throw it on the dyno, and while im at it tune it with a 100 shot... ive been running a 75 for a while, but just with the timing retarted..

GT500OC

You can get away with it with the K&N, but not a JLT. I had the first K&N intake for the Shelby (they used my car for the R&D) and when they told me that it did not require a tune (I got it tuned anyway), I said thank you and went home and tok it off and sold it, as my son and wife bought me the JLT for my birthday! I got an additional 30 RWHP and35 RWTQ with the JLT. I was at CA Speedway about two weeks later Dec 06' running the 1/4 and K&N and a group of what I think were customers walked up when they saw it was me (only shelby out there at the time) and you should have seen the look onthe K&N guysfaces when they looked under the hood and wanted to show off their unit and they saw the JLT, it was priceless.

GT500OC