id guess on the rkl your running out of fuel and gettin a popping noise and miss from it.

i just got a custom tune but would like a firmer shift.can i still leave in tune and adjust shift firmness.i have the 7140

thanx for quick responce.so guess this meens i dont have to reinstall origanal 1st.
this is my second diablo programmer 1st was for my dodge diesel.they both have been super products and made huge differances in the way they both run
thanx for great produts and suport

iv bought a costpm tune so im wondering if i have to put origanal back in car b4 loading new tune to my programer .or you you would give me run down of steps to follow please.its a 06 mustang gt with 7140 programer.thanx

have bigger tires on my car so to change do i have to change any of the tunes or just go into axel and make changes.

you have to be sure to turn traction controll off so car doesnt defuel at bottom end.my 06 pulls super hard at bottom end with it off.

wow with the new c&l cai and the preaditor really made my auto tranny gt come to life it pulls so much better thru all the gears.thanx diablo great product.by the way its set on 93 performance.

hey thanx for the reply.i was sure it would help but wasnt sure how much guess ill find out next week when it gets here.yea this is a great site used to hang around on the dodge diesel page but guess ill be here since i traded truck for the mustang.

not a hard ? just wondered how much better it will run and fuel milage.i had a cummins with one and it was amazing power .

just got the car it has 3in stainless exhaust.and ordered cold air kit and preaditor from dealer wil i notice alot of diff. also it is an auto tranny. the dealership also said they had to install it and i couldnt change anything if i want to keep warinty

im still wondering how the timing on the ext.rkl puff tune would be compared to the same one with out timing like what it is timing and if it has lots more power but which is easier on the moter.someone on here must no a little something about this

all these views and nobody knows about the timing differance

also wonderin if i need new lift pump to run the rkl tunes i run them now but never really get on it for long time still stock auto tranny

i was wonderin if the tunes with no timing added are easyier on the motor then the regular rkl extreme.im running the rkl puffer no timing now just wondered if there is much differance in them.power wise and how it affectes the motor thanx for any and all info.

same here had to get an 05 for my 04 thoughobred diesel was very good about changes also good peeps there