Compression Ignition Addict
Join Date: Oct 2012
Location: North Richland Hills, Texas
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I don't think anyone makes a true turbo back right now...I could be wrong but 99% of the kits I see are downpipe back. Since the 2011+ have a good designed downpipe that's large diameter already there won't really be any difference at least on stock turbo power levels.
The 5" is a lot louder than the 4" I'm told. I run open downpipe on mine and it's not bad dumped until you get on the throttle hard then it's NASCAR loud which is fun and fine with me since it isn't full time. The biggest change with either if you're going to delete is you hear a ton of wastegate squeal/turbo whistle. The wastegate squeal bothers some, I'm just used to it at this point.
You don't really need the block off plates if you're running the mini max you can just tell it to turn off the EGR I believe.
2015 F-250 King Ranch 6.7L CC FX-4
Fabtech 10" 4 Link with Coilovers/American Force Vector 22x12/Toyo MT 40x15.50x22
2011 F-250 King Ranch 6.7L CC 4x4 sold