They don’t.įederal law prohibits the operation, sale or lease or transfer of title of a light-duty truck (1975 or newer, 10,000 pounds gross vehicle weight or less) that has had the smog system altered or removed. The dealers we talked with are quite strict about accepting trade-in pickups that have had the DPF systems removed. Removing the DPF and running a straight-through exhaust from downpipe to tailpipe boosts power, considerably so when employing a power programmer that can alter the electronic engine controls to accommodate the higher air flow. A DPF-delete kit and a power programmer unleashes this Ford's power potential. No one disputes the DPF has an adverse effect on exhaust flow, although the newest generation of diesel pickups the exhaust restriction is far less noticeable. The EPA mandates the DPF system be installed for the life for the vehicle. In warranty or out, plugged up or open, it really doesn’t matter. (Ford, Ram and GM warranty their exhaust’s smog components, of which the DPF is the main player, 100,000 miles or five years.) )Īs one contractor said, “It’s a whole lot easier for me to drop $300 on a DPF-delete kit than shell out $1,700 on a new DPF for a pickup that’s out of warranty.” Some businesses feel it’s too expensive to replace the DPFs on older, high-mileage pickups that are losing power and fuel economy because the filters are plugged. It’s simply an easy “upgrade” to save money. In the end it comes down to whether cost or my health (and my family's) is more important.Removing the DPF isn’t necessarily a power quest for owners of contracting businesses. For me I was debating on the DPF retrofit (VW dealer item in Europe) for my Golf before it met its demise. I bet I know where see will land on this debate. Since my wife lost her dad to cancer she has gone on a crusade to remove harmful chemicals from our life. At that time we will weigh the costs/benefits of keeping DPF vs removing. Only way my Beetle is losing its DPF is if it fails and cost to replace is not covered under some warranty. This is based on what he was getting at the time. I pointed out that first the whole system is under warranty for a long time, and second his argument for MPG was false as he would have to drive it for the next 10 years at the most optimistic fuel savings to BREAK EVEN. He already researched cost and was asking me about it. So he wanted to take his new (<2000 miles) Jetta and delete the DPF, DOC, EGR, all of it, to get better mileage. He was lamenting the emissions "crap" on the semis and how much of a headache it is to keep them running. I had a discussion with a customer in Nashville that is a big truck mechanic. So I'm going to throw out the obligatory "Emissions equipment removal is illegal" warning. The better mileage is just the icing an on already sweet sounding cake. I modified it firstly because I wanted to and secondly because I will never have the dreaded intercooler icing issue again. I spent right at $2K ($2,054 to be exact) for everything done to my car (it would've been cheaper if I went with a 2.5" exhaust) but I didn't modify it just for mileage. So, yes you should see a slight increase in mileage but don't expect it to pay for itself. The only other time I've had a 700 mile tank is on my trip to Memphis. The car went 702.4 miles and took 13.6 gallons of fuel to fill her up. I changed nothing about my driving style and while there were a few warmer days, there were some days below freezing as well.
I filled up on the 10th and got a pretty noticeable increase in mpg.
Dpf delete tuner and exhaust install#
In April 1st I took my car to Dax at Skunkwerx Performance and had him install a 3" straight pipe exhaust, DPF & EGR delete as well as a Malone Stage II tune. With my bone stock car (6 speed manual) this would net me mid 40's mpg wise very consistently. Most of the interstate has a speed limit of 70mph so I set the cruise at 68mph, there is about a 5 mile stretch that is 55mph so I drop her down to 56mph on the cruise control. My work commute is about 36 miles one way, with 2.4 miles from my driveway to the interstate and 1.6 miles from the interstate to where I park at work. During that trip I set the cruise to 70mph and my radio to some Led Zeppelin and Derek Trucks.
I was driving about 800-900 miles a week and averaged 45mpg with a best of 50.5mpg on a trip to Memphis. I've had my TDI since December 10th, 2014.
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