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All orders are processed on the following business day from when the order is received.

Please make sure that when placing an order from our website, you are ordering the correct unit for your engine type.

Free shipping available for online orders over $20, shipping to domestic, contiguous United States addresses.

Tuner Re-flash/Upgrades:

Please fill out the appropriate form for all warranty and non-warranty returns. All returns must have a return form. Please download, print and fill out the appropriate form and send it with your downloader.

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Warranty Return Form | Non-Warranty Return Form

Product Return Policy:

A 20% restocking fee for all cancelations and returns. No returns after 30 days. No credit or refund on parts if the packaging has been open or installed. Customer is responsible for any and all shipping charges.


Any package refused or non-deliverable due to a bad address provided by you is subject to a 20% restocking fee and shipping charges. If you want the package re-delivered to you then you will be responsible for the additional shipping and handling.


All returns must first be authorized by management at PPE. Call 714.985.4825 M-F 8am to 5pm PST for return merchandise authorization (RMA). Packages without RMA numbers will be refused and sent back to sender, at his/hers expense.
Some parts may require additional testing and/or evaluation for credit or refund.

Parts not accepted for Return:
No returns on any electrical parts.
No return on special order items.

This statement may not include all information applicable to all circumstances; if you have any questions not covered in this statement then please contact us.

Who pays the duties, fees, taxes or additional charges for international shipments?

International shipments are subject to customs duties - taxes imposed on goods when transported across international borders. PPE is not responsible for any duties, fees, taxes or additional charges of any kind. The recipient is responsible for all related duties, fees, taxes or additional shipping charges.

Please download and print out the form. Mail everything listed in the form to the address provided on the form. All returns must have a return form included.

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To save directly to your computer, right click and Save Target As...

Torque Converter Core Return Form

If you would like to upgrade your current Duramax or Dodge Xcelerator, please download, print and fill out the Xcelerator Upgrade Form and send it with your downloader.

Xcelerator Upgrade/Unlock Form

Performance products can increase horsepower above and beyond factory specifications. Additional horsepower creates more stress on the drive-train components, which could result in drive-train failure.

Note regarding emissions-related, non-E.O.-legal products: THESE PRODUCTS ARE LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES THAT MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR HIGHWAY OR OFF-ROAD USE.

This agreement sets forth the terms and conditions for the use of PPE products. The installation of this product indicates that the Buyer has read and understands this agreement and accepts the terms and conditions. PPE (Pacific Performance Engineering) Inc., its distributors, employees, and dealers (the “Seller”) shall not be responsible for the product’s proper use and service. The buyer hereby waives all liability claims. The Buyer hereby acknowledges no reliance on the Seller’s skill or judgment to select or furnish goods suitable for any particular purpose and that there are no liabilities which extend beyond the description on the face hereof, and the Buyer hereby waives all remedies or liabilities expressed or implied, arising by law or otherwise (including without any obligation of the Seller with respect to fitness, merchantability and consequential damages), or whether or not occasioned by the Seller’s negligence. The Seller disclaims any warranty and expressly disclaims any liability for personal injury or damages. The Buyer acknowledges and agrees that the disclaimer of any liability for personal injury is a material term for this agreement and the Buyer agrees to indemnify the Seller and to hold the Seller harmless from any claim related to the item of equipment purchased. Under no circumstances will the Seller be liable for any damages or expenses by reason of use or sale of any such equipment. The Seller assumes no liability regarding the improper installation or misapplication of its products. It is the installer’s responsibility to check for proper installation and if in doubt, contact the manufacturer. The Buyer is solely responsible for all warranty issues from the manufacturer.

The Seller gives Limited Warranty as to description, quality, merchantability, and fitness for a particular purpose, productiveness, or any other matter of Seller’s product sold herewith. The Seller shall not be responsible for the products proper use and service and the Buyer hereby waives all rights other than those expressly written herein. This warranty shall not be extended, altered or varied except by a written instrument signed by Seller and Buyer.
The Warranty on PPE Manifolds and Up-Pipes Kits, OEM-Length Up-Pipes is three (3) years, a limited lifetime warranty on PPE cast aluminum pans and covers, and a limited lifetime warranty on PPE Transmission Coolers and one (1) year limited warranty on all other PPE products from the date of sale to original buyer and limited solely to the parts contained within the products kit. All products that are in question of Warranty must be returned prepaid to the Seller and must be accompanied by a dated proof of purchase receipt. All Warranty claims are subject to approval by Seller. Under no circumstances will the Seller be liable for any labor charged or travel time incurred in diagnosis for defects, removal, or re-installation - of this product or any other contingent expenses. Under no circumstances will the Seller be liable for any damage or expenses incurred by reason of the use or sale of any such equipment. In the event that the buyer does not agree with this agreement: the buyer may promptly return this product, in a new and unused condition in its original packaging, with a dated proof of purchase to the place of purchase within ten (10) days from date of purchase for a full refund. The installation of this product indicates that the buyer has read and understands this agreement and accepts its terms and conditions.

Please fill out the form on our contact page or call Customer Support at (714) 985-4825.