Is it possible to run a aftermarket exhaust brake with a 5" system

sik6's Sig:

07 QC Cummins 4x4 HandShaker SLT

I'm running a PacBrake with my 5". The Pacbrake replaces the 4" cast elbow that comes right off of the turbo so the never changes. The 5" downpipe connects at the elbow using a 4" reducer. Now, if you have gotten rid of the cast elbow and just have a 5" downpipe right off of the turbo then you will need a 5" inline exhaust brake.

staarma's Sig:

2004.5 2500 White SLT QCSB 4X4 6SPD 3.73 Edge Hot J/A w/ EZ, Smarty Jr. POD, 5" exhaust w/6" tip, AFE Megacannon Stg 2, HTT 62/71/13ss, ATS In/Ex manifolds, Di Pricol rail pressure, Diesel Dynamics Big Line Kit, FASS HPFP, Di Pricol boost and FP gauges w/ Geno's filter lid, CON Fe, Joe Hellman IC, condenser guard, Fumoto valve, PAC Brake, TDK front bumper

Stupid question but doesn't the new model Cummins have one built in?

Wyatt Earp's Sig:

Wyatt Earp
Smoke show: 2002 Dodge CTD
Daily Driver: 2003 VW Golf TDI
Other New Car: 2008 MB R320 CDI - Diesel Luxury

thanks for the pics staarma very helpful
To Wyatt Earp yes the new ones have it built it now sure if its stardard equip or optional buddy of mine has a 6.7 with the brake and it very nice towing his 25' gooseneck and tractor

6.7s use a variable vane turbo for the exhaust brake. It's a post-turbo add-on for the 5.9s. Dodge offered the factory or dealer-installed option of a vacuum-operated Jacobs on the later 5.9s, starting around 2005 or thereabouts, IIRC.

I want one of those PXRBs for the '07. Very nice feature to have when towing. I hear the Pacbrake PXRBs are quite effective.