GT350/Bullitt Throttle Body




Ported throttle bodies require more tuning revisions than non-ported throttle bodies.  Not all tuners are willing to tune for it.  It is the customer responsibly to verify with their tuner if their tuner is willing to tune for it and verify cost of tune revisions prior to purchasing.  AFS warranty policy covers any manufacturing defects and documented damage in shipping.  AFS does not accept returns for ported throttle bodies if your tuner is unable/unwilling to work with the product. 


The diameter at the throttle shaft remains 87mm to aide in ease of tuning; the inlet/outlet tapers are changed; the throttle shaft is thinned and the throttle blade is modified. 

Porting picks up 5-7 hp/7-9 ft lbs of torque with big gains and throttle response and mid-range torque that you can feel.

Depending on your motor and year, you may need either a GT350 or Bullitt Throttle Body.  The basic design of these two parts is the same, but the electronics are different.  The GT350 Throttle Body comes from the GT350 motor and can be run on a 2011-2021 GT350, a 2015-2017 Mustang GT, or a 2015-2017 F150.  The Bullitt Throttle Body was made for the 2018+ Bullitt Mustang and is compatible with the 2018+ Mustang GT or F150.  

Requires an adapter plate to run on the stock Mustang GT Intake Manifold with 80mm inlet size. (Can be purchased through AFS for $150)

Send all parts together for port matching at $25 fee.


PRICING And descirptions


Ford Performance Throttle Body 87mm GT350 2015-2020 GR3E-9F991-AB

$500 Ported GT350 Throttle Body Outright (return shipping included)


Ford Performance Throttle Body 87mm Bullitt 2019-2020 KR3Z-9E926-A

    • Fits 2018-2020 Mustang GT with 5.0L Coyote engine
      Requires throttle body adapter M-9474-M5087 for use on the production intake manifold

Ported Bullitt Throttle Body Outright

$515 (return shipping included)


Porting Only

$250 (Send yours into us; return shipping included)





Email us at with the following information:

Full Name

Shipping Address

Email Address

Best Contact Phone Number

Sending IN PARTS

If you are sending your parts to Air Flow Solutions to be ported, please read the following:

Remove gaskets and any extenuating bolts from intakes.  A $10.00 cleaning charge will be applied to any orders received with oily, greasy, or dirty.  Use extra packing materials when shipping.  Air Flow Solutions is not responsible for any damage incurred during shipment of a product from a customer to us.


Include the following information inside the box when shipping your parts:

  • Full name
  • Contact phone number
  • Return shipping address
  • Email
  • Description of your order


Address your shipment to:

Air Flow Solutions,

C/O Bret Barber,

2545 N. Huachuca Drive,

Tucson, AZ 85745.


We expect for customers to have already been paid for service work to be done when we receive their parts.


Tuning:  We recommend tuning your engine after installing a ported intake and/or throttle body as you would with any modification.  Although tuning is not always required, we suggest you send a data log to your tuner and for maximum results and to ensure safety.  We work with many reputable tuners including 5-Star Tuning, OZ Tuning, and VMP.


We accept payment in the following forms:

  • Cash ($10 off)
  • Check- made out to Air Flow Solutions
  • Credit Card (Add 3% Service Fee)
  • Zelle (listed as Bret Barber 520-355-9711)
  • PayPal (When you pay with PayPal IF YOU PAY AS A FRIEND, YOU WILL NOT BE CHARGED A FEE.  IF YOU PAY AS SERVICES AND GOODS, YOU WILL BE CHARGED A 3% FEE.  If you choose to Pay for Services or Goods, please add the 3% Fee on top of your order.)
    If you choose to pay with PayPal, we can be found at this email address:


Let us know if you have any further questions.

Thank you,



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