Compression Ignition Addict
Join Date: Nov 2011
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I didn't notice anything when I did mine.
I went the route of trying to keep the DPF first and used the MBRP filter back just like you are (thought I went with the 5".)
After futzing with the green card and finding it caused a bunch of problems and never delivered on performance or mpg, I deleted.
W/ deletes everything changes, but a filter back doesn't do a thing other than look cool (IMHO it looked a lot better than the stock dual tip.)
2012 F350, 6.7L Diesel, 4x4, SRW, Crew Cab, Short Box, Loaded, Ingot Silver
Detroit Truetrac, Icon leveling springs, steering damper mounts, King reservoir shocks and steering damper, Ultra Predator 22x10 and Nitto Terra 325/50R22 (35"s), H&S Minimaxx & Gearhead, aFe 5" SS w/ muffler, Leer XL, LineX, Titan 50gal, Airlift bags and wireless.
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