w/ 15 lb Black Bottle;

w/ 15 lb Black Bottle;Now Available w/ Black Bottle, Solenoid & Hardware; Specially Designed for Diesel Engines, including Duramax®, Cummins®, and Power Stroke®; Adjustable HP Settings; Gains up to 75HP on Stock Applications; Upgrade Your Fuel System or Computer for Additional 60-150 HP; Higher HP Gain w/ Computer Modifications; Complete Kit for Easy Installation; 15 lb. Bottle - Black; Choose from Kits with or without Mini 2-Stage Controller (15974NOS);
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02521BNOS NOS Diesel NOS System

879.95

w/ 15 lb Black Bottle;

w/ 15 lb Black Bottle;Now Available w/ Black Bottle, Solenoid & Hardware; Specially Designed for Diesel Engines, including Duramax®, Cummins®, and Power Stroke®; Adjustable HP Settings; Gains up to 75HP on Stock Applications; Upgrade Your Fuel System or Computer for Additional 60-150 HP; Higher HP Gain w/ Computer Modifications; Complete Kit for Easy Installation; 15 lb. Bottle - Black; Choose from Kits with or without Mini 2-Stage Controller (15974NOS);

  • Now Available w/ Black Bottle, Solenoid & Hardware
  • Specially Designed for Diesel Engines, including Duramax®, Cummins®, and Power Stroke®
  • Adjustable HP Settings
  • Gains up to 75HP on Stock Applications
  • Upgrade Your Fuel System or Computer for Additional 60-150 HP
  • Higher HP Gain w/ Computer Modifications
  • Complete Kit for Easy Installation
  • 15 lb. Bottle - Black
  • Choose from Kits with or without Mini 2-Stage Controller (15974NOS)

General Policies

Payment Method      

  • We gladly accept PayPal and All Major Credit Cards.

Warranty & Return Policy

  • Holley Performance Products warrants new products to be free from defects in material and workmanship for a period of 90 days from date of purchase.
  • Holley Performance Products Limited Warranty specifically does not apply to products, which have been (a) modified or altered in any way; (b) subjected to adverse conditions, such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion, or faulty repair; or (c) used in other than those applications recommended by Holley Performance Products.  Holley Performance Products also does not warrant, and disclaims all liability for products used in racing activities and/or applications other than those specifically recommended in the current brand catalog.
  • Buyer pays return shipping

Shipping & Tracking

  • Please see the “Shipping and Payment” tab
  • We ship all US orders via United Parcel Service (UPS Ground)
  • A signature is required on all UPS orders over $750
  • Tracking information will be sent via email after your package ships (you must supply a valid email address during checkout)
  • We ship within 1 business day upon receipt of payment
  • We do not ship to APO/FPO or US Post Office Box addresses
  • We ship internationally thru United States Postal Service (USPS) Express Mail International; allow extra time for international shipments
  • We can not ship as a "GIFT" or ship anything internationally with changes to the invoice

Customer Service & Feedback

  • We strive to answer questions submitted thru eBay’s message system within 1 business day
  • If you have a technical question about your purchase, please call our Tech Services department at (866) 464-6553 between 8:00 am – 6:00 pm M-F and Saturdays 9:00 am to 3:00 pm.
  • We want you to be completely satisfied with your purchase – please let us know if you have any problems with your purchase before leaving feedback so we have a chance to make it right – we want your repeat business!

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