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I was given a stock 03 4.6 intake plenum from a buddy of mine and was thinking about porting it. I tried looking for porting instructions on the web but without any luck. I am not sure what should be ported. I notice a couple of spots on the side right before the intake that I could smooth...

I used to think modding my mustang was cool but now I think it is a waste of time and money. About a year ago when I first got my 2003 Mustang GT Vert, I thought is was pretty fast. Not Coupe fast but still pretty fast. I started catching the mod bug and before I knew it, I had a Superchip...

Hello, I just purchased FRPP 4.10 gears for my 2003 Mustang GT Vert. I am waiting to install them until I can get something to recalibrate my speedo after the install. What is the best/cheapest thing to do to correct the speedo? I have a Superchip module but can't find anyone to custom...

I just bought some KB Super Sub Connectors for my vert and had some questions about installing them. I have a brother-in-law who is a really good welder. He wanted to know what to weld them in with so that he does not mess anything up. Can we put them on in his driveway with the car on jack...

Hi all, I am starting to look at getting some new tires to replace the factory Goodyear tires on my 2003 Mustang GT Vert. Now my little brain thinks that going to a wider tire (275/40/17) that I would get more traction in dry and wet situations (as well as the track) than the original size...

Ok, I have just spent several hours searching this forum, google and whatever else I could find in order to make up my mind on 3.73 or 4.10 gears. This is what I have found out using the gear/rpm calculator at corralnet. 3.73 gears @ 70mph is about 2300rpms 4.10 gears @ 70mph is about...

I just got back from the drag strip and I am very discouraged and pissed at the same time. When everyone else seems to be getting better at the track with each time they go; I seem to be getting worse... My first time ever to the track (very first run) was a 14.2something. My average was a...

Hey everyone, I have a lightly modified 2003 GT Vert that I had a Mac CAI installed on. I was happy with the Mac CAI except for when it was time to clean the filter. I just got sick of getting under the car and taking off the filter, cleaning it and putting it back on. I purchase a 85mm...

Well, I was nervous but I finally made it to the track. I am a little bit bummed because I did not get into the 13's. My best for the night was the following.. 60 ft - 2.1710 330 ft - 5.9839 1/8 ET - 9.1362 1/8 MPH - 78.40 1/4 ET - 14.0778 1/4 MPH - 99.91 I am not sure what I need...