What did you do to your S550 Mustang today?!

[Slow Yote]

Headers and OPG/CS put on.

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[Slow Yote]

Picked up the car, went for a ride to “test” it out lol.

Shop said the headers (XForce) are very good quality but the design is subpar and made them harder to install, specifically around the starter and recommended putting some heat wrap on to protect the starter wiring, so I got some and will be putting it on tomorrow, along with a data log to send off and clear the 02 sensor code that I’m sure will pop up.

 

[HKusp]

Picked up the car, went for a ride to “test” it out lol.

Shop said the headers (XForce) are very good quality but the design is subpar and made them harder to install, specifically around the starter and recommended putting some heat wrap on to protect the starter wiring, so I got some and will be putting it on tomorrow, along with a data log to send off and clear the 02 sensor code that I’m sure will pop up.

catless?

 

[Slow Yote]

catless?

High flow cats.

 

[Blufc3s]

First time out in 2026, hopefully winter is over!

 

[Joshinator99]

Got her out of the garage for the first time this spring and first wash here at the new home in NH.

 

[Joe Gonsalves]

Pulled the cover off and blew the dust off. Took it for a ride. Needs a bath, but unfortunately wife's car needed some TLC.

 

[Craig Brown]

I hope to start the clutch, fly wheel and transmission install Monday. Between Easter, helping my daughter get a new lawn tractor, and helping my grandson put new coils and plugs in his car. I think Monday it will be my turn. LOL

 

[RTR077]

Took the lesser known 'Snake' US421 between Mountain City, TN and Bristol on our way to the NASCAR race yesterday. What an absolute blast!!

 

[Twotall77]

This is my back yard. There's so many good an underrated roads here.

 

[Bobn57]

Used Gyeon iron remover and still needed to clay the stang to get rid of embedded dirt. Applied ceramic detail spray for a boost. Happy with results. Now it's ready.

 

[LCK22GT]

Today was the first wash of the year since coming out of winter storage a couple weeks ago. I went to the touchless power car wash first and got a bottom blast. On the way in there a young female was pulling out and shouting out the window and making hand gestures (not the bad one). I guess she liked the car lol. I drove it for a half hour to dry the underside, came back and did a hand wash and crevice cleaning. It was like summer here today!

 

[Craig Brown]

I just finished changing the plugs and coils today. I used NGK 9510 plugs gaped to .035 and Motor craft DG 542 coils. The car only has 35K miles on it but last year I would get an occasional cylinder miss fire code and it all started after doing a bunch of bolt on power and performance tune. I did some research on why this was showing up without a specific cylinder error and what I found, is that it was probably the spark plug gap being too large if I was still running stock plugs. There is a condition known as blow out that happens if the plug gap is too large the added power blows the spark away and throws a code in that split second. I checked the old plug gap and found that some were as high as .050 but most were .042. They are all .035 now and with new coils I am good to go. I took it for a test drive and no codes, so I think all is good.

 

[Slow Yote]

I just finished changing the plugs and coils today. I used NGK 9510 plugs gaped to .035 and Motor craft DG 542 coils. The car only has 35K miles on it but last year I would get an occasional cylinder miss fire code and it all started after doing a bunch of bolt on power and performance tune. I did some research on why this was showing up without a specific cylinder error and what I found, is that it was probably the spark plug gap being too large if I was still running stock plugs. There is a condition known as blow out that happens if the plug gap is too large the added power blows the spark away and throws a code in that split second. I checked the old plug gap and found that some were as high as .050 but most were .042. They are all .035 now and with new coils I am good to go. I took it for a test drive and no codes, so I think all is good.

What power adder to you have?

 

[Craig Brown]

I have catted long tube headers, MBRP race cat back exhaust, 2018 intake manifold with lock outs, CAI, Auto Mafia performance tune. My miss fire issue started after the tune was installed.

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