| Yes if you are worried about the warranty you will have to stick with the dpf back system. Does the 5500 have a dpf on it? I thought the heavy trucks were still exempt. If it does IMO the dpf back exhaust really isan't worth the money. It won't give you any performance gains or egt drops. All of the restriction is in the cat and the dpf. Just my .02 cents.
__________________ KYLE 
05 Chevy LLY Crew Cab LT Dually 4x4, Crank it up Diesel Tie rod sleeves and centerlink, BD Diesel Remote Fuel Filter, EGR Blocked, TTS Dual Lift Pumps, FPRV Shim, Bullydog Outlook Monitor, AFE Stage 2 CAI and modded turbo mouthpiece, BD Diesel Manifold, Diamond Eye Turbo Direct Pipe, Diamond Eye 5" exhaust straight piped, Level Kit, Suncoast Stage IV w/ 1056 Torque Converter and Allison Deep pan EFI Live Tuned by IdahoRob!!!!
1981 VW Rabbit Pickup, 1.6L Diesel, 4 Speed Manual, 35 MPGs |