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ecoboost

  1. Misfire after downpipe and tune

    Hey what's up. I have a 2017 Automatic Ecoboost. Here's my problem.. I've recently upgraded my OEM downpipe for a CVF Catted Downpipe. I also got a diablotune 3 days after it. The issue I've been having is when I floor it, once my car is within the range of 4.5-5.5 RPMS, it starts doing very...
  2. Head Gasket Issues

    Hello! Longtime lurker, first-time poster. I’ve searched this forum and others extensively, so forgive me if this topic has already been covered and I missed it. I’m trying to gauge how prevalent head gasket failures are on the 2.3-liter EcoBoost engine. Is this a common occurrence or an...
  3. Mustang 2016 ecoboost carbon cleaning

    Hello all, i have mustang 2016 ecoboost tuned and have K&N intake system, after i make an carbo cleaning by hydrogen pulse technology the RPM fluctuate between 700-1200 with shaking the car turn off. i've got the following errors when i connect it to my OBD: P0088: Fuel rail/system pressure...
  4. CUSTOM TUNES for the 2021+ F-150 By 5Star Tuning!!

    Hey all! 5Star Tuning just released their CUSTOM TUNES for the 2021 and UP Ford F-150! Now if you’ve been unaware, the 2021+ F-150’s have been untunable due to their Cloud-Based PCM, but now, it appears that 5Star Tuning has cracked the code. They have been able to tune Ecoboost Trucks...
  5. California COBB Accessport V3 - $325 Shipped anywhere in the US

    Reason: I sold my EcoBoost for a 2022 Ranger Lariat Tremor... same engine, sadly not supported by COBB. It's uninstalled, ready to go. Comes with case, blue faceplate, USB, and OBD cables. Loaded with the latest v5.04 91 & 93 Octane tunes; including the v5.03 Stage 3 tunes which are no longer...
  6. Best areas for hood vents

    Not sure if there is already a thread on this but wondering if anyone had tested the hottest areas under the hood of the mustang and where a vent or vents would be most beneficial to release engine bay heat.
  7. Officially filed a lemon law claim through BBB Auto Line. What can I expect in terms of the possible outcomes?

    For a quick background, I bought my certified pre-owned 2020 EB with the upgraded equipment group & black accent package last August in NY. It had just over 3,000 miles on it at the time. The next day after bringing it home, it began showing signs of a transmission problem. Since the purchase...
  8. Mishimoto Intercooler for Explorer ST at Lethal Performance!!!

    Mishimoto just released their Intercooler for the 2020+ Explorer ST's and it's quite the performer! During research and development, they not only found a 64WHP and 12WTQ Gain, they successfully dropped charge pipe temperatures by over 100° F and increased flow over 19% Order yours in the link...
  9. Is active exhaust worth it on an Ecoboost?

    My last mustang (2020 Ecoboost) didn’t have it. This time, I’m building an EB and I want to add it but wondering if it’s worth the cost. While it used to be like $800, it’s now an extra $1225. I know eco’s are notoriously quiet which I don’t necessarily mind, but does the active exhaust really...
  10. CP-E Ecoboost parts @Beefcake Racing!!!

    The Mustang Ecoboost is a proven all around performer with good power and engine efficiency. When its time for more boost, check out the full list of upgrades from @gocpe. They just released their NEW Ecoboost Cast Turbo manifold to compliment a complete line of...
  11. 2015 Mustang Ecoboost, Guard Green Manual Trans.

    Hey everyone! I am selling my 2015 Mustang Ecoboost Premium (Guard Green/Performance Package/50th Anniversary Package/6 Speed Manual). I preordered the car back in 2014 and I’ve been the only owner since I picked it up Dec. 26th, 2014. It was originally my daily driver, but it turned into a...
  12. D.I.Y. Active Aero'ish... on my Ecoboost Mustang

    What up y'all. So I built a D.I.Y. Active Aero for my ecoboost and wanted to share with y'all how I did it. It's NOT a tutorial, just a general video. No I don't track the car but a guy can dream. I just wanted it cause I thought it was cool af. There's companies that can sell you full ready...
  13. Ecoboost GT PP Brembo Brake Upgrade

    Has anyone done swapped their ecoboost brakes to GT PP brembos? I have the ecoboost premium and wondering if it’s possible and if someone has done it before..? If anyone can add some insight or redirect me to an article where it is discussed I’d appreciate it.
  14. Whipple Superchargers Stage 1 Upgrade Kit (2021+ Ford F150 3.5L) Available now, here at Lethal Performance!

    NEW PRODUCT ALERT! Happy #whipplewednesday! What better way to celebrate than a NEW WHIPPLE PRODUCT?! Just released is the new Stage 1 power package from Whipple Superchargers for the 2021+ Ford F150 EcoBoost 3.5L. This kit comes with the Whipple Tomahawk flash device, a cold air intake and...
  15. Whipple Superchargers Stage 1 Upgrade Kit (2021+ Ford F150 3.5L) Available now, here at Lethal Performance!

    NEW PRODUCT ALERT! Happy #whipplewednesday! What better way to celebrate than a NEW WHIPPLE PRODUCT?! Just released is the new Stage 1 power package from Whipple Superchargers for the 2021+ Ford F150 EcoBoost 3.5L. This kit comes with the Whipple Tomahawk flash device, a cold air intake and...
  16. 2015 Ecoboost Exhaust Smoke!!!

    So i am farley new to the whole car scene, i have a 2015 Ecoboost with 70k miles, i have a borla catback exhaust and catless downpipe, no tune yet, car runs perfectly fine but i notice occasionally when idling smoke comes out my exhaust, some times pretty thick! it goes away after a minute but...
  17. Misfire CEL, Coolant loss, Rough startup.

    Hello, I’m experiencing issues on my ecoboost mustang: P0303 Misfire with P0316, Misfire occurred first 1000revs. Coolant loss, but when it drops to min line, it stops losing. I ran engine on-demand test & get P1116 code ECT Sensor related. Car is stock, only K&N drop-in and exhaust after...
  18. Any suggestions for build my mustang?

    Hi everyone, I am here for some advice for building a car. It's my first car. I am planning to buy a mustang, but not sure how to select the packages. If anyone have some ideas, please share some thoughts with me. Firstly, I don’t care too much about the horsepower. I am big fan of mustang’s...
  19. Methanol vs E85

    Anybody with built mustangs, did you end up going with methanol injection or go e85 and why? I have a built shortblock and the nx2 with the stock fuel system and am wondering which route I should go.? I know that methanol will help with cleaning the engine valves but what difference in power...
  20. Engine Rattle when coming to temp on cold start

    On cold start when the car starts to lower in rpm and idle there is a very brief rattle that happens for probably 2-3 seconds and then is gone. I was wondering if this is normal or if anyone has insight on this? Otherwise the car drives fine


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