The exhaust is used to physically replace the DPF, while the tuner disables the vehicle’s regeneration mode and ensures that no other engine codes come up.Īfter installing a DPF delete kit, you’ll notice significantly increased horsepower and fuel economy. While there are an endless number of kits available, there are two main components to any DPF delete: the exhaust and the tuner. What does a DPF delete kit do?Ī DPF delete removes a vehicle’s DPF and configures the computer system to function without it. A replacement part can run you hundreds or even thousands of dollars depending on your vehicle, and that doesn’t include labour costs. Regardless of how effective your vehicle’s regen cycle is, all DPFs will eventually need to be deep-cleaned (which requires your vehicle to be off the road for several days) or replaced all together. This can happen if the regen cycle is not functioning properly or is unable to keep up with amount of particulates being produced. A bigger issue however, is the damage that a clogged DPF can cause to your engine. During the regeneration cycle, power and fuel economy are significantly reduced. The vehicle then starts what’s known as the regeneration cycle, which uses fuel to burn off the accumulated soot.Īs you can imagine, there are a number of ways in which a DPF limits your vehicle. The name tells it all, this is a filter installed in the exhaust system that filters soot and other particulates from engine exhaust.The soot is stored in a compartment within the exhaust system until it fills up. What is a DPF?ĭPF stands for diesel particulate filter. A DPF delete is one way to satisfy that need. In the end it comes down to whether cost or my health (and my family's) is more important.Drivers are always looking for ways to improve their vehicle’s performance. 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. 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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