S550 GT Stage 1 NA


Stage 1 power also sounds pretty boring, but this one isn't. 

To achieve an increase in power from the S550, as outlined in stage 0, you have to give the engine something to work with. Only then can you remap the ECU to re-optimise performance. As a prime and relevant example, changing the intake system on the car for a bigger diameter less restrictive system also breaks the factory pre-set perimeters for fuelling and cam timing, without a tune it can be counterproductive. 

Back to back testing on car after car has proven the gains achievable by fitting the Steeda PROFLOW cold air intake, changing the oil for Millers Nanodrive and then tuning, so we have made this our stage 1 Package

  • Steeda PROFLOW Cold Air Intake System
  • Millers Oils 0w20 Nanodrive NT+ Oil and Filter
  • Dyno Custom Tune with Printout
  • Custom Launch Control Software Installation

Expected tuned output is at or around 400whp in a manual car - which is, depending on your preferred drivetrain loss percentage, as much as 460bhp! (EU spec cars)


To really get the full effect from this why not take it a step further to 'MAP Stage 1.5' by adding an Axle-back exhaust system into the mix and unlock that V8 sound. Or 'stage 1.75' with a full catback system including an X or H pipe to really help scavenge some extra power out of her. We offer Multiple options of exhaust systems, please contact us for more info or check out our Mustang store to pick your preferred system.

1. Store Orders Fulfilment Information

All orders are subject to product availability. As U.K stock of items increases, more and more products are available for delivery within 3 working days. However many items that we offer, may only be available at the manufacturer and can take time to get in for you.

Wherever possible, we aim to fulfil all orders within 15 working days. In instances like this where the three days are exceeded, we will inform you and aim to keep you updated.

In extreme circumstances, some products may only be manufactured to order,  these delivery times can be over a month from the purchase date. We will contact you to let you know if this is the case before we place the order with the manufacturer.

In any case, please feel free to contact us for an ETA or updates on your order once it is placed.

2. Services General Information

When booking services with us, the booking date will reflect stock availability. In some cases we may require a deposit from you at the time of booking.

In instances where service pricing is listed as 'from', the minimum price of the service is being advertised and the actual price will vary, dependant on the work required for your specific vehicle and potential option variants. 

3. Pricing and Information Disclaimer

All prices and descriptions on this website are subject to change without notice. Whilst we make every effort to provide you with the most accurate, up-to-date information, occasionally, one or more items on our website may be mis-priced or mis-represented. In the event that a product is listed incorrectly due to typographical, photographic, a technical error or error in information received from our suppliers, Motorsport and Performance Ltd shall have the right to refuse or cancel any orders placed.

If an item's correct price is lower than our stated price, we will refund the difference before shipping you the item.

If an item's correct price is higher than our stated price, we will notify you of the price error and give you the option to proceed with the order at the correct price or cancel the order.

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