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Return to M-9603-M8B Ford Performance 2018-2021 Mustang GT Calibration with Cold Air Kit and Throttle Body
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  0 of 0 people found the following review helpful:
 
5 of 5 M-9603-M8B Ford Performance 2018-2020 Mustang GT C July 20, 2021
Reviewer: Pedro Laboy from Las Vegas, NV United States  
Worth the wait!!! Excellent mod and very straight forward install just download instructions. High quality parts direct from Ford.Great bang for the buck very good low end power will wake up your S550. Highly recommend!!! Very pleased!!!

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  0 of 0 people found the following review helpful:
 
4 of 5 GT calibration with cold air kit July 6, 2021
Reviewer: Douglas B. from Corbin, KY United States  
I’m overall happy with the product it does what it said. It firmed up my shifts while in drive compared to the sluggish shifting before and I can feel a noticeable toque increase below 3k rpm. The CAI could been engineered better in my opinion. The fit and finish is my issue and the use of a foam insert to seal out the air is cheap. Nothing cheap about the price. If your looking for a kit and a tune like me that wouldn’t screw up the remaining warranty there’s not many choices. Fords instructions are horrible.

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  0 of 0 people found the following review helpful:
 
5 of 5 Amazing Items, Amazing Shipping Speed June 12, 2021
Reviewer: Federico Lopez-Conde from Houston, TX United States  
100% recomendable seller.

Everything described showed on time.

Thank you.

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  0 of 0 people found the following review helpful:
 
5 of 5 Excellent OEM Power May 10, 2021
Reviewer: Michael from FL United States  
I like this kit by Ford because it works, it looks great, I trust the OEM Tune and if I ever sell my car this bolt on won't take away from the value. I did upgrade the air filter element to the Airaid higher flowing filter which Ford recommends as a replacement filter. I think daily drivers and owners who appreciate stock vehicles will see the value of this kit & be pleased with the gains.

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  0 of 0 people found the following review helpful:
 
5 of 5 Intake and Tune by Ford Performance November 2, 2020
Reviewer: Mark Bertschi from Thomasville, NC United States  
Received Part in 3 days and was 100.00 cheaper than other sellers who had it on backorder

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  0 of 0 people found the following review helpful:
 
5 of 5 Mustang performance pack October 8, 2020
Reviewer: Dane Johnson from Quitman, TX United States  
Ordering online was easy and product was received in a timely manner and arrived in good shape.

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  0 of 0 people found the following review helpful:
 
4 of 5 2019 mustang gt hp kit September 21, 2020
Reviewer: Phil from Southern tier NY  
The m9603 kit for 2019 mustang gt 19 hp increase was priced below retail list and came in 3 days to NY from Illinois.  

Emails confirming order and delivery status were spot on.

I recommend ford racing speed shop direct.  They did great job with my order.

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  0 of 0 people found the following review helpful:
 
4 of 5 Good add on. May 26, 2020
Reviewer: Ken Avellino from Windsor , ON Canada  
Could have supplied a few hoses to replace ones that had to stretched and turned awkwardly. Overall great product, just needs a few extras.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great seevice. May 18, 2020
Reviewer: Anonymous Person from HOUSTON, TX United States  
Racing Parts Direct is fast and reliable. Thank you.

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  0 of 0 people found the following review helpful:
 
5 of 5 Great price for a good peace of mind May 17, 2020
Reviewer: Joshua Fitte from DIberville, MS United States  
Install didn’t take to long nice bump in power down low and great sound and looks too

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