So ur sayn I can just get a tune that will have an exhaust brake option and I won't have to change any parts.With the stock or slightly over stock turbo on your 08 turbo braking is strong. If I were you I would seek out emissions legal tuning with a strong turbo brake option.
Not sure how this works as I believe the "turbo" brake uses a vane system to control backpressure.It works better than an exhaust brake. An exhaust brake just closes down the exhaust creating back pressure. The turbo brake does the same but as it closes off the exhaust it will also spool up the turbo building a little boost.
Not sure how this works as I believe the "turbo" brake uses a vane system to control backpressure.
If the brake closes down that decreases exhaust flow so how can the turbo spool up and make boost and why would you want it to? You are off the accelerator already and maybe on the brakes.
Maybe you can explain it to me please.
I don't know anything about this I'm interested in it tho. I need some sort of exhaust brake for towing heavy loads
Some ECMs already have the program in them. The programming is there incase the ECM was used incase the ECM was installed in a larger truck such as a Topkick or 60 series truck. Not sure if the 08 ECM has this program in it but if it does there is a thread either here or on the DD explains how to access it.
If not it can be done through EFI Live or Banks makes a stand alone box.