Online Store Policies

The OST Dyno Online store was designed to provide our performance modification and tuning customers with easy access to products that we install, test, and tune in our shop. It also includes products and tools that we develop at OST Dyno. Our goal is to provide quality parts at a competitive price. If you find a product at a lower price elsewhere please let us know. Our goal is to offer the lowest prices legally permitted by manufacturers agreements.

Shipping Policy

The OST Dyno Online Store accepts orders to the United States, Canada, Mexico, Australia, New Zealand, most of Europe, and a number of other countries.  Orders delivered in the US can not be sent to a PO Box, APO or AFO address.  The OST Dyno Online Store offers several domestic shipping options and most available items ship the same day if the order is received by 1PM Eastern Time.  International orders usually leave the warehouse the same day or next day.  Shipping charges and sales tax will be shown before an order is finalized provided that the ship to postal code is correct.  If an item is not available, it will be shipped when it becomes available unless you contact us to cancel the order.  After an order is submitted you will receive an e-mail confirmation.  You will receive another e-mail confirmation after the order has been shipped.

Orders Shipped Outside the lower 48 states – You will be required to pay additional shipping charges, applicable duties and taxes on each shipment. These charges may include PST, GST, HST, duties and other taxes of goods (e.g. excise tax). A brokerage fee may also charged to process shipments and present the requisite customs paperwork to customs on the importer’s behalf. These fees are not included in the amount you pay OST Dyno Online Store. Please contact your local customs authority for more information.

Sales Tax (United States)

Sales tax is added to most US orders.  OST Dyno Online Store collects and pays sales tax to most US states.

Credit Card Refund Policy

IMPORTANT NEW REFUND POLICY: Due to a recent change imposed upon us by the credit card companies we will not be able to refund the credit card fees charged to us on any purchase made. The credit card companies have changed their policy and will be retaining the credit card fees from us and our customers regardless of the reason for a refund being issued This fee withholding policy begins 10/16/19. For example, if you purchase a $5,000 product from us we receive $4,840 after the credit card company takes their fee (this is a USA purchase example, international fees are higher). If the order is cancelled we can only refund you the $4,840 we received. This policy only applies to credit card purchases – check, wire transfer and cash payments will receive full refunds.


If your package arrives damaged photograph and save all packaging material for the shippers inspection.  Please email as soon as possible to report the damage. We must submit your claim to the shipper within 3 days.  The shipper will inspect and may request to pick up the damaged merchandise and return it to us.  OST Dyno Online Store will accept returns within 10 days of purchase for refund as long as the item is unopened, unused and a return authorization number has been issued. Returns will not be accepted without a return authorization number. No collect shipments will be accepted. Returns, other than those that are due to a factory defect are subject to a 15% restocking fee.  No returns will be accepted for “custom ordered” items. If you have a return, please e-mail to obtain a return authorization number. Shipping and handling fees will not be refunded. All refunds will be credited to the credit card used in the transaction. Properly pack, insure, and ship your return by ground prepaid. We will refund your return ground shipping charges if the reason for the return is due to our mistake.

Business Policies

If you are considering utilizing any of our services please carefully read and become familiar with the policies and procedures listed below prior to scheduling work on your vehicle.  It is not unusual for customers to wait 3-4 months (or longer) to get on our schedule to begin work on their vehicles. We process a large volume of vehicles each month and make every effort to perform scheduled work as quickly and efficiently as possible. In order to maintain that efficiency we have developed specific policies to support this process. We diligently adhere to these policies and procedures so that work scheduled in the shop can be completed efficiently and in a timely manner. We also rely on these policies and procedures to maintain safety for both our employees and customers. 

Payment Options: We reserve the right to accept cash or wire transfer payments only. Check payments will require 3-5 business days to clear. Credit card or Paypal payment may be accepted at our discretion. All payments over $6000 must be made by wire transfer, check or cash unless prior arrangements have been made.

NEW: Due to a recent change imposed upon us by the credit card company  (They will begin withholding the fees for any purchases made regardless of the reason for us refunding the charges to the customer) we cannot refund the credit card fees charged to us on any purchase made (including returns, cancellations etc.).  This fee withholding policy begins 10/16/19. 

Proposals for Performance Work & Tuning

Our proposals are detailed and prepared with the intention of eliminating any hidden or surprise charges. This process is very time consuming. Our policy is to provide an initial proposal and then up to two revised proposals at no charge. If the desired modifications continue to change and additional proposals are requested we offer a personal consulting service at a rate of $100/hr. to assist customers in identifying exactly what modifications are desired/recommended as well as produce additional proposals. 

Performance Modifications

Changes to Scheduled Work

We strongly recommend that all intended modifications be finalized before scheduling work. We realize that on occasions customers wish to make additional modifications after work is scheduled. In the cases where changes to scheduled work occur please be aware that it may significantly delay the completion of work on your vehicle. If this situation occurs and the changes would require delays to other scheduled work in the shop we will move your vehicle to an “as time permits” status (see definition below).

Unexpected Complications

All of our proposals for work are based on a vehicle being in “New” or “Like New” condition. Many of the cars we provide proposals for are from out of state and we have not physically examined. Unless we are informed of specific modifications that would impact normal work completion times we will assume that the vehicle is in the exact condition as originally manufactured. If the vehicle is not in OEM condition and the changes impact the scheduled work, the completion time/cost could be delayed.

Other common “unexpected complications” include but are not limited to:
– Improperly installed prior modifications/components
– Incorrect customer supplied parts   
– Improper aftermarket electrical component wiring
– Evidence of potential engine damage from previous tuning, poor quality fuel, low oil pressure etc.
– Faulty/unsafe OEM components
If any of these (or similar) situations occurs and the changes are enough to delay other scheduled work in the shop we will move your vehicle to an “as time permits” status.


If work is scheduled, the deposit paid and then the work is cancelled there will be a 25% restocking fee on all non-custom ordered parts. Custom ordered parts cannot be restocked or have a refund provided. If there has been more than three proposals or proposal modifications made in the scheduling of this work (see “Proposals for Performance Modifications” above) our standard consulting fee of $100/hr. will be charged for the time spent modifying proposals (in excess of three proposals). 

In-house Tuning

Tuning of high performance vehicles is a complex process. We perform this service very methodically and with every aspect of vehicle and shop personnel safety in mind. To have a vehicle placed on our tuning schedule requires a $250 non-refundable deposit. If a vehicle is delivered for tuning only and we determine that it is not safe to place on the dyno or drive on the street we will decline to proceed with the tuning until the defective/dangerous items are corrected. If you wish to have us perform the required corrections/modifications we will make every effort to complete the changes in a timely manner. However, if this situation occurs and the changes are enough to delay other scheduled work in the shop we will move your vehicle to an “as time permits” status. 
Important Note: Due to increased complexities with later model vehicles (2018+) there may be additional time and costs involved if the tuning templates have to be requested from HPTuners or issues related to the Security Gateway, FCW or other unknown issues arise. 

For information on In-House tuning please review the following:

Remote Tuning

This is a service that we offer outside of our normal day to day operations at the shop and is handled via email only. Due to the extremely high volume of remote tuning there will often be at least a 24 hour delay in responses to emails. Expected email delay times will be maintained in the signature section of all email responses so that our remote tuning customers can be properly informed. Find our Remote Tuning Policies here:

Information on Vehicles That Have Changed Owners

Over the last 10 years we have modified a very high volume of cars. Out of respect for a customers privacy we will only provide information if the approval of the customer for who the work was originally performed is obtained. We regularly receive calls on cars that have changed hands, are listed online or are for sale at a dealer lot. We have chosen to respect the customers privacy and will not provide that information without permission. If you have purchased a new vehicle are interested in learning more about the modifications, maintenance or recommended future modifications we do offer consulting at an hourly rate here:

“As Time Permits” Status 

Vehicles will enter this status when unscheduled additions to work are requested or unexpected complications occur that are beyond our control. In fairness to all customers it would be inappropriate to allow delays (beyond our control only) on one customers vehicle to negatively impact other scheduled work in the shop. Due to the high volume of cars that we process each month, the 3-4 month waiting period (or longer) to have a vehicle enter our shop for modifications and the need to keep the scheduled work completed in a timely manner we will move vehicles to an “as time permits” status when required. When cars are in this status we will make every effort to complete the required work as quickly as possible. However, the previously scheduled work will take priority. There may also be delays depending on the man hours required, parts availability etc. to complete the unscheduled work. We will always inform a customer when these situations occur and of being moved to this status as well as communicate updates when available. 

Customer Supplied Parts

If a customer supplies parts that were not purchased through OST Dyno additional labor charges will apply.


When scheduling installations and performance modifications please be certain that you can make the scheduled date before committing. Please understand that we are generally scheduled out 3-4 months in advance. If you schedule an appointment and then for reasons beyond our control you need to reschedule you will be added to the schedule at our next available opening – which most likely will be several months out. We will make every effort to accommodate reschedules but please understand that we are very limited on options and extended wait times are likely. Cancellations without reschedules will be subject to restocking and cancellation fees. Custom ordered products can not be restocked.

Payment for Services

We reserve the right to limit forms of payment from customers depending on the situation. We will always accept payment via bank wire transfer (plus fees), check (out of state check may take up to a week to clear) or cash. 

Remote Tuning Requirements & Policies

To begin the remote tuning process please review and complete the following steps:

Purchase a remote tune:

  1. Purchase a remote tune online here –  Remote Tuning Purchases  
  2. Prioritized Service – We offer prioritized service at an additional cost here – Titanium Options

Required Hardware:

  1. A HPtuners module with credits is required. If you do not own one you can purchase a module w/credits here – Remote Tuning Electronics
  2. If you own a 2015 or newer Mopar you will need an unlocked PCM. If you do not own one you can purchase one here – Remote Tuning Electronics
  3. If you own a 2018 or newer Mopar you will also need a “Bypass” module. There are 2 choices that can be purchased here – Remote Tuning Electronics
  4. A wideband O2 sensor is required for wide open throttle tuning (except Hellcats/Trackhawks/Demons). There are several options here – Remote Tuning Electronics


  1. All remote tuning customers must complete the “Remote Tune Checklist” and email it to
  2. You will need to extract and email the current tune in your car. If you have an “original backup” or stock tune please email this also.
    IMPORTANT – 2015+ Mopar only – If you are purchasing an unlocked PCM you will need to send the read from the unlocked PCM
  3. Tutorial videos on extracting tunes and using HPtuners can be found here –  YouTube Channel.
  4. Please include the serial# of your HPtuners module with your original backup file.
  5. All emails should be directed to

Remote Tuning Policies

                      Remote tuning requires involvement on the part of the remote tuning customer that would not normally occur with an in-house dyno tuning session. Below is a summary of requirements and policies regarding remote tuning:

  • Basic computer knowledge is required to utilize this process.
  • Familiarity with sending/receiving email, adding and opening email attachments, installing software, etc. is necessary.
  • All emails should be directed to
  • Please do not call our shop for remote tuning updates or revisions. This service is separate from services provided at our shop. 
  • Understanding of the data logging process, reading and loading tunes. We do have videos reviewing this process on our YouTube Channel.
  • Data logs attached to an email should contain the name of the tune revision that the data log was run on.
  • Emails sent with a data log should  be short, descriptive and only contain one data log unless multiple logs are requested by us or are required to resolve a problem.
  • Do not send multiple emails in the same day unless you have purchased the “Titanium” level of service.
  • Tune revisions for “Gold Level” service will be replied to in the order received and within the time period described in my email signature.

Note: Re-tuning (injector change, cam change, fuel change etc.) for both GM and Mopar is an additional charge.