Going Ahead with DPF.

@boneebone , why did you choose the Johnson Mathey ? I know another member on here that went the same route and said the difference is you don't have to get the filter cleaned/baked as often as the Hug Micro. I believe your system is better for OTR or trucks that run more miles. I average about 40 to 50k a year and it is recommended to have the micro cleaned/bake around 50k which puts me about a yearly clean. Now that you have explained how your system looks like (bulky), I'm more comfortable I went my route. I have 7" straights and my DPF, is hooked up to the straights. My right side utility box was replaced, it's just a little bit bigger but you can't tell unless I mentioned it. It looks completely factory, and the DPF sits inside it.

 

@areelius, I would look into the Johnson Mathey system, since you run more mile. Boneebone says it less expensive. Mike @ Fletcher's is going to cost you between 15k to 16k, I know he does really clean looking factory installs, but just saying if want to save some money.

 

RETROFIT 4 by Diesel Dave posted Apr 16, 2015 at 4:56 PM

RETROFIT 2 by Diesel Dave posted Apr 16, 2015 at 4:56 PM

RETROFIT 1 by Diesel Dave posted Apr 16, 2015 at 4:56 PM

My install

 

Same here the last time I was inspected was at Winterhaven also back in 2009

 

The Johnson Mathey and Hug are both great filters, but I heard also that the Johnson Mathey is more efficient and doesn't need to be baked as often.

That's really not the reason, it's just the JM Filter required less fabricating and looks like it belongs on the truck, plus I didn't want a weed burner exhaust.

For your truck with side stacks, that's the way they would install a HUG Filter with it exiting into dual no restriction mufflers.

I would imagine a install on a Freightliner Classic would be similar or the same.

To install a HUG Filter vertically on a BOC exhaust Truck like my Volvo, it would've taken fabricating new mounts and installing isolators as the HUG Filter is a shorter, and fatter in diameter DPF then the Johnson Mathey and is also very heavy.

That would've driven the cost up considerably more.

 

That's a nice and clean install, no one would ever think there was a DPF underneath your truck.

 

Only thing I wanna bake is some cookies.

 

Great tread guys, THANK YOU all for sharing a lot of great info!

 

So can you buy 2 compliant cheap parts trucks to just sit around and run your non compliant one?