Fits:  1998.5-2000 Dodge Ram 5.9L Diesel Part #: 30400 Improved Horsepower AND Fuel Economy in One Simple-to-Install Product Whether you use your truck as your daily driver or your cross-country hauler, the Mileage Max delivers something every driver wants: improved fuel economy. In less than 10 minutes you can install this money-saving inline module that not only improves fuel economy by up to 7%, but also delivers a boost in horsepower. The more you drive, the more you save. Developed and tested using innovative engineering techniques, the Mileage Max takes the bite out of rising fuel prices by optimizing the timing and pressure of fuel delivery, which has consistently been proven to improve not only fuel economy, but also horsepower.  Testing Procedure The Mileage Max was developed and tested by Edge’s engineers using a Mustang dynamometer to duplicate typical driving conditions. Both input and return fuel lines from the test truck were run into a separate tank containing a known quantity of fuel placed on an extremely accurate digital scale. With the truck fully warmed, the truck’s cruise control was set to 70 MPH in overdrive and a constant load applied to simulate highway loads. The weight of the consumed fuel was then subtracted from the original weight and converted into MPG. Repeated test results showed the Mileage Max consistently delivered up to a 7% improvement in fuel economy (depending on year and model of the vehicle) and up to 35 extra horsepower. In order to ensure accuracy, several tests were performed and an average made with and without the Mileage Max using the same conditions on the same dyno. Many of the items we sell will fit differently depending on the particular vehicle model variation, and will have a different part number depending on the vehicle. We will list all of the relevant part numbers in the item description. Also in some cases, we have multiple color options for parts in stock and will list those options in the item description. If you're buying an item from us which has multiple color options or multiple part numbers listed, then you need to let us know the relevant part number or color choice you need when checking out. You can do this by simply typing it into the "Checkout Instructions" field when using the eBay Checkout, and this will ensure we get you the right fit in the right color! We ship within one business day of receiving your payment! The shipping cost for this item to your location is displayed in eBay's built in shipping section. It is our aim to get your item to you quickly, safely, and inexpensively. We offer flat rate shipping to all customers in the continental United States. There is an additional charge for items shipped to Alaska, Hawaii. We do not ship to Puerto Rico, U.S. Virgin Islands, A.P.O, or F.P.O. addresses at this time. We ship items using FedEx, UPS, or LTL Freight depending on the item, and your location. We ship items from whichever one of warehouse is closest to you to ensure quickest delivery. While cannot control/guarantee transit time, we find that in most cases it averages about three days from us to you.   Canadian Customers We are pleased to offer flat rate shipping to most of our customers in Canada! However, customers in Yukon, Northwest Territories, Nunavut, Newfoundland & Labrador, as well as more rural locations in the other provinces should email us with their location before bidding as there may be extra shipping costs to their region. Zig's accepts the following forms of payment: PayPal. Visa, MasterCard, American Express, Discover. Payment must be made within 7 days of end of auction or your purchase using "Buy It Now." Buyers in Pennsylvania will be required to pay a 6% sales tax on their order. At Zig's, We're extremely proud of our dedication to complete customer satisfaction, and therefore accept returns for any reason within 30 days of shipment of the item. Our returns policy is subject to the following conditions: You must contact us by email to obtain an RMA number before returning any item. We cannot accept any returns without this number. The item must be returned in it's original packaging, with all and any accessories. Info We'll Need: When you contact us to obtain an RMA number, we need you to include the following info in your email to us: Your eBay User ID. The eBay Item number for the item you wish to return. Current email address and phone number. Your reason for returning the item. All returns that are not the fault of Zig's Auto will be charged a 15% restocking fee. A return RMA number and return shipping info will be emailed to you. Once you receive your RMA number, you can return your product with any shipping company that offers a tracking number. Refunds will not be given until part(s) have been returned and checked in. If We Mess Up... We don't mess up often, but in the rare circumstance that it should happen, we will make it right. Once you let us know, we will email you a call tag for a freight free return. Once the part(s) have been received and checked a replacement part(s) will be shipped out, or a refund will be issued. The process usually takes about 5 working days. This applies if: You receive a part other than described. The part is damaged in shipping. The item is defective (subject to verification.) With over 100 years combined experience in the automotive and aftermarket business, and the most competitive pricing in the industry, Zigs is the only choice for all of your aftermarket truck and car accessory needs! We pride ourselves on superior customer service, and fast shipping. We have thousands of parts in stock from over 700 manufacturers! Want to know more about us and see all of our items currently for sale on eBay? Visit our About page! Have a question about us or any of our items? Contact Us! Phone: 570-654-0353.   Unique template design, marketing, and strategy consulting from As Was. inkfrog terapeak i000000 Analyzing "Smart Counters" only @ inkFrog.com

Return Items must be returned within 30 days . Refund will be given as Money back. Refund policy details: null Shipping Destination: United States Carrier Method Shipping Cost Per additional Item STANDARD Standard $0.00 $0.00 Destination: Canada Carrier Method Shipping Cost Per additional Item USPS Priority Mail Medium Flat Rate Box Intl® $39.95 $29.95 Payment Method Type Instructions to Buyer Paypal null Insurance Not Offered (Domestic)