I wouldnt run an exhaust brake on the stock valve springs. For towing 238/80's are way to big.
6.0 trans cooler.
And a good set of gauges.
If you want bigger injectors and turbo. I suggest some 160/0's or 160/30's. As for the turbo I would do a kc 38r but you wont have an engine brake. In my honest opinion it's not needed. If you dont upgrade the turbo a new compressor wheel from kc turbos will fix the surge and get some better boost. Or step up to a compressor wheel and turbine combo.
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