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I should be able to let everyone know how the Magneride shocks work with the Steeda springs in 2 or 3 weeks. Have a load of Steeda suspension bits ordered just waiting for them to be delivered then schedule the install. Also to be installed at the same time are the GT350R brake kit and P51...

It's not really a question of lean or rich... well, actually both. Being that the widebands are further downstream on LTHs, there will be an increased delay in AFR measurement. If the ECU is not informed of this increased delay, it will essentially be trying to chase a moving AFR target. I'm not...

Short answer: The wideband O2 sensors are in a different position than stock. This will affect your AFR. The tune will make the necessary corrections so your ECU can make the proper adjustments to the AFR.

There could be a ground wire loose somewhere. We installed a UPR catch can on a friend's car and after the install, it was giving the exact same errors. We checked and rechecked everything but couldn't find anything wrong. Since the catch can mount was installed on a bolt where a ground wire was...

Hi, Current build: 2018 GT PP1 Euro Spec Would like a quote on the GT350R brake conversion kit. Please PM me for contact info and more details regarding other possible parts I require. Thanks! Mark

Hi, Looking to purchase the following Steeda parts for my build: Mustang Ultimate IRS 'Stop the Hop' Package (2015-2019 All) S550 Mustang Rear Lower Control Arm Spherical Bearings (2015-2019 All) S550 Mustang Ultra Lite Low-Profile Chassis Jacking Rails (2015-2019 Coupe) S550 Mustang Extreme...

I also have a Euro spec '18 GT PP1 and I can confirm that it can't display the diff temp gauge.

Subscribed! Just picked up a 18 GT PP1 and also intend to install a Whipple on it sometime in the near future.

Aftermarket plates usually have bigger and/or more baffling than the stock one. They also usually come with a more robust PCV valve to prevent boosted air from entering your crankcase. I have a '14 Focus ST with a built engine running a EFR7163 pumping out 35 PSI. It has a Radium catch can...

The leak down test is used to test cylinder compression. http://www.superstreetonline.com/how-to/engine/impp-1108-blown-head-gasket-diagnostic/ Link above shows the testing tool. There is usually white smoke but if the leak is small, it could be confused with the normal white steam that...

Your head gasket could be bad. If you are getting misfires, rough idling/driving for the first few minutes after startup, it could be a result of coolant leaking into one or more of your cylinders. The engine runs rough on startup because of the coolant in the cylinders then after the coolant...