This is a brand new aFe Power (Advanced Flow Engineering) Air Intake System. We are an Authorized Dealer of aFe and carry the full line of products.

Pro Dry S Air Intake System
This Stage 2 cold air intake system produced 13hp and 11lbs. x ft. torque and outflowed the factory intake by 100%. Enclosed in a durable 16 gauge, powder-coated heat shield; this air intake system features a washable/reusable conical air filter that improves airflow for increased horsepower and torque. This intake system also features a heat-insulating molded plastic tube that replaces the stock intake tract and directs increased air flow with improved volumetric efficiency for maximum performance. One-piece heat shield requires little or no assembly and the filter is constructed with 100% polyurethane for long life and multiple cleaning cycles.

3-3/4” Conical Pro Dry S Air Filter
This intake utilizes a huge, 3-3/4" conical Pro Dry S performance air filter for increased performance. This 3-layer progressive, synthetic material air filter requires no oils and cleans with soap and water for maximum convenience.

One-Piece Filter Housing:
The air filter is housed in a one-piece, black powdercoated 16-gauge heat shield that keeps warm engine air out for maximum performance. This one-piece heat shield uses factory mounting locations and comes with all brackets and hardware for a hassle-free installation.

Dyno Tested Intake Tube
The intake tube is designed to maximize air velocity and is dyno tested and flowed using the latest engineering tools for maximum performance, mileage and throttle response.

Fits the following applications:

'05-'09 Ford Mustang 4.0L V6

Part #: 51-11312

aFe Pro Dry S Filtration
Stage 2

Gain 13 HP & 11 lbs x ft. torque over stock!
- 100% CFM increase

Welcome to the AZ Offroad & Performance eBay Store!
We appreciate your business. To make your shopping experience as simple and easy as possible, please refer to our company policies shown below.

Payment Information:

  • We accept PayPal and all major credit cards using PayPal. 
  • We accept PayPal eChecks. Just like a regular check, it usually takes between 3 and 5 business days for an eCheck to clear in our business PayPal account.
  • For shipment to an Arizona address, we are required to collect 9.3% sales tax.
  • We suggest immediate payment for all orders, but do allow 10 days from the date of purchase for payment to be received.
  • If payment is not received within 10 days of the order being placed, an Unpaid Item Case will be opened.

Shipping Information:

  • UPS Ground / FedEx Ground shipping is free to the lower 48 states, excluding Alaska, Hawaii, Puerto Rico, Guam, and all other U.S. territories.
  • For international shipments, orders may be subject to additional duties, taxes, charges, fees, and costs associated with the shipment of the item once it has reached its destination. These charges are the buyer's responsibilty.
  • Shipping is available to a PO box and any APO/AA/AE/AP address at an extra charge for this service when available.
  • Most orders will ship within 1-3 business days from the time payment is received and cleared.
  • Shipments are not made on weekends or holidays.
  • Express shipping is available at the buyer's expense. Please contact us for a shipment quote to your location.
  • Some out of stock items are drop shipped from a distribution warehouse or directly from the manufacturer, so tracking information may not be available immediately.
  • Tracking numbers will be updated to as quickly as possible once an order has processed and shipped. Tracking numbers are updated manually, so please allow enough time for your information to be entered after your order has been placed.

Return Policy:

  • AZ Offroad & Performance, Inc. & will do everything possible to ensure the customer's satisfaction.
  • If there is any error in the part received, please contact us immediately.
  • Returns will be accepted if the item is unused, uninstalled, in the original packaging and in brand new condition.  Items that are defective may also be returned.  We are not responsible for install mistakes.  Items must be returned within 30 days from the purchase date.
  • All returns must be approved and issued a (Return Authorization) RA # for return.  The RA # must be on the outside of each package with the RA # in a visible area.  Any package without the RA # will be refused.
  • Buyer is responsible for shipping charges on returned items and to insure the package.
  • Returns may be subject to a 20% restocking fee. If any item is returned by choice that originally included free shipping (not a defective or performance claim), there will be a restocking fee deducted from the refund.
  • Once items have been received & inspected per our guidelines, a credit or refund will be issued to the customer.
  • Any cancellation must be approved prior to shipping.  Any item that has already shipped must be returned according to the guidelines stated above.

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