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I have a 2015 base model GT and just did the swap from Sync 1 to Sync 3. The radio I installed has version 1.0. How do I go from version 1.0 to version 3.4? A friend of mine said that all I need is to plug in a USB with the software on it. Another friend said that I have to upgrade to an...

I have a 2015 Mustang GT with 28,000 miles. I replaced my OEM Motorcraft spark plugs with NGK 6509 spark plugs today (stock heat range). I gapped them to 0.051, and the car feels great. For anyone looking to do preventative maintenance, spark plugs are fairly cheap and are easy to change...

As the title states, anyone here running with their knock sensors desensitized, or disabled entirely? I can't find my false knock for the life of me. This is a last resort option for me.

As the title states, have any of you ever dealt with false knock and ended up resolving it? I'm trying to figure out where to look. I get false knock throughout the RPM range when I go WOT, and it's driving me crazy. I'm aware that the exhaust system is typically the issue, but after looking...

Planning on boosting my MT82 car soon, and I'm looking for a good street tire. Hoping to keep the power level around 700 whp with a Procharger D1SC. How do the Michelin's hook from a roll?

So, who here is running boost and has NOT upgraded their OPG and CS? I wasn't planning on boosting my 5.0, but I stumbled upon an amazing deal on a Procharger. I will be installing the boost with a friend, but I don't feel comfortable opening the motor on my own for installation of OPG and CS...

Is it beneficial to install two crankcase breathers on my FBO N/A 5.0? That way, nothing can gum up the intake manifold and throttle body. I already have a JLT 1.0 catch can on the passenger side, but I'd replace that with a filter. Also, would it have any detrimental effects on the motor...

As the poll states, are you happy with your power level? I have a "full bolt-on" Mustang GT, and despite the power level being perfect for the street, I'm always wanting more. I want to boost the car, but is it really necessary to do so? Just a random thought that popped into my mind. Discuss.

There’s an audible whine coming from the lower passenger side of the engine bay, and I suspect that it’s the A/C compressor pulley. I made this thread to see what you all think. The A/C blows cold and you can hear the compressor turn on when using the A/C. The whine is persistent, regardless...

Does anyone have a functioning Cobra Jet Monoblade throttle body for sale? If so, shoot me a PM. I have a friend in search of one.

I added Roush axlebacks to my exhaust setup, and now I'm getting some drone. I'm wondering if anyone has experience with sound deadening, and weather that would dampen the exhaust/road noise. My idea was to place sound deadening in the trunk around the spare tire wheel well, as well as...

I found a great deal (locally) on an Anderson Composites GT350R spoiler in gloss black, and I’m torn on whether or not to purchase and install. The spoiler is hit or miss for me. Some days I love it, other days I’m not too crazy about it. What should I do? The spoiler will be paired with the...

Does anyone have a link to quad exhaust tips that bolt onto Roush axlebacks and will fit with the Roush valence? I just installed the Roush valence on my base model car, and I'm having trouble sourcing tips. I believe the inlet is 2.5" on the roush muffler.

Playing with the idea of sending it on a rear valence because I can’t take the look of the base bumper anymore. People have made the Roush valence work, but what about a GT350 valence?

Hey everyone, I currently have the Ford Racing by Borla Sport catback (pictured below), and I'm wondering if Roush axlebacks will bolt right up without needing custom exhaust work. I ask this question because I don't want to cut up my +$1000 exhaust. If anything, I'm thinking I can just have...

Just brainstorming a cheap way to use E85 without spending +$150 on re-locating my front (upstream) O2 sensors in my SW headers, the sensors that read air/fuel. Would using a single spacer on these O2 sensors have adverse effects and make the car run poorly? My thought process is that the...

As the title states, I'm looking to purchase IMRC lockouts for the 2018 intake manifold. If you have these for sale, shoot me a PM! Thanks.

I have Stainless Works Catted Longtubes and have heard mixed opinions on whether or not I need to re-angle my O2 sensors for E85. Some people have said that there's no need to do so with cats, and others say it's a necessity. I don't plan on running E85 often because I can't find it locally...

Can someone educate me on this subject? :headbonk: I am currently running a JLT catch can on the passenger side (which sees the most oil), but I was debating on buying a cheap crankcase breather for the driver's side. My car is N/A. Is it worth picking up a crank case breather? Do I need...

Does anyone else's exhaust make a burp or popping sound at idle? Ever since I installed the 2018 GT manifold (IMRC's locked) and uploaded the FF tune, I've gotten these exhaust burps. So far, I've only run 93 octane, so I can't vouch for E85. I have a friend who told me the exhaust burping is...