Need a second Tune
#1
Need a second Tune
I'm thinking of adding a 2.5 inch ZZP DP with no cat attached to a stock GM performance Catback.
I had a tune done a couple of years ago when I added the header and GM Catback, will I need a second Tune because of the DP.
Also, will it be louder with no Cat.
Thanks guys
I had a tune done a couple of years ago when I added the header and GM Catback, will I need a second Tune because of the DP.
Also, will it be louder with no Cat.
Thanks guys
#2
With the lowered back pressure from running without a cat into a low restriction exhaust, you may need to have it retuned. It all depends on how the current tune will respond to the loss of back pressure.
Will it be louder, probably not much.
Will it be louder, probably not much.
#7
im shocked that your DP didnt set off your CEL..it does to everyone lol
set mine off too this past weekend when i changed it
i ordered an o2 defouler to see if that will help..and im burning thru so much more gas now with the bigger tires, DP and cat back geez lol
set mine off too this past weekend when i changed it
i ordered an o2 defouler to see if that will help..and im burning thru so much more gas now with the bigger tires, DP and cat back geez lol
#8
Just wondering if I would need a second tune if I get a 2.5 DP installed concidering that I already have the header and GM performance catback.
Also, will it be louder then it is now, will it burn more gas, and will I get the extra 15 HP that ZZP says I will.
Also, will it be louder then it is now, will it burn more gas, and will I get the extra 15 HP that ZZP says I will.