Exhaust brake for an 2004

[BLoging]

is there a exhaust bracke makerthat has a exhaust brake for a 2004 not a 2004. 5?
thetransmission is bone stock! with oe size tires and rim's

 

[Lumpy]

Look up Pac Brake's PRXB. Here:Diesel Exhaust Brakes and Retarders | Duramax, Cummins Turbo Diesel, Powerstroke Brakes

 

[Shadrach]

I have the PRXB on my 03 ( same as an early 04 - 305 hp ) Mine is a stick. Autos should have upgrades done to trans. Great for towing and even slowing done empty. Shadrach

 

[CKelley1]

bd makes both lockup and brake