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  1. Ford Performance CAI vs JLT CAI vs full send supercharger?

    Hi! New here so I hope this isn't a silly question. 2019 Ford Mustang GT with no mods other than exhaust. Huge price difference of course, but does the Ford Performance Calibration Kit (CAI+throttle body) perform better than something like a standalone JLT CAI since it doesn't come with a...
  2. Occasional Rough Idle on 2019 Mustang GT

    Curious if anyone has any thoughts on this. Just to clarify this vehicle only has a Roush Cold Air Intake (NO TUNE), Suspension, and some exterior modifications. Myself, Ford Dealer and a local mechanic have been chasing a weird idle issue for 6 months. Everyone's kind of given up at this point...
  3. 2016 Mustang GT - Misfire Cylinder 8

    Hi to all! I have a 2016 Mustang GT California Special Auto. Long time since I've posted here. I've been having an issue where my check engine light would come on during long road trips - it only ever comes on when im on the highway and doing maybe 60-80mph between 1.5k-2.1k RPM. Every time...
  4. HELP - Cold Air Intake (JLT) - Extra hose fitting / missing hose?

    I'm hoping somebody can help me figure this out. I bought a used JLT CAI for my 2017 GT PP. The air tube has an extra hose fitting, but the motor and OEM intake tube do not have the additional fitting and hose (see photos). After looking at other CAI's online. It looks like most CAI for 2017...
  5. Cold air intakes

    Looking to purchase a new cold air intake system and am debating between a few systems due to price and performance. My first option is the air raid intake junior kit(air raid intake tube with drop in filter) which is around $250. Then the jlt CAI with the closed lid $350. And finally a Roush...
  6. GT Sold: PRICE DROP: Steeda Proflow 15-23 closed cold air intake

    Put it on the car for a short time, never got a dedicated tune for it. Box says “for 2018 mustang GT…” but Steeda’s website says 2015-2023. Worked well on my 15. SOLD: $180 shipped CONUS. Stickers thrown in for good measure. Comes with MAF insert, not shown (it’s inside the MAF tube in this pic).
  7. Advice and Questions for Headers

    Hello, folks! First time poster. I have a 2019 GT. I'm looking to get 1-7/8 inch Stainless Power catted headers paired with my 3 inch Borla Atak system. Need some advice and a few questions answered before I go ahead and do it.... 1.) Most importantly, I was told with a tune and catted long...
  8. Lethal Performance - SAVE on Corsa Performance Carbon Fiber Intakes!

    Hey, everyone! Until the end of October, save $75 on Corsa Performance Carbon Fiber air intakes here at Lethal Performance! This will be in the form of a rebate, which you can fill out after purchase at the link below. CORSA PERFORMANCE CARBON FIBER INTAKES REBATE FORM Let us know if you...
  9. Lethal Performance - SAVE on Corsa Performance Carbon Fiber Intakes!

    Hey, everyone! Until the end of October, save $75 on Corsa Performance Carbon Fiber air intakes here at Lethal Performance! This will be in the form of a rebate, which you can fill out after purchase at the link below. CORSA PERFORMANCE CARBON FIBER INTAKES REBATE FORM Let us know if you...
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  11. Ported 18+ and JLT install on 17’, update: had the maf backwards 🤦🏻‍♂️

    Before you ask yes I flashed a tune for the manifold and JLT, my tuner says it’s on my end and mechanical. I’m at a loss tho, car ran prior to this but had a misfire due to the imrc being broken. Nothing else got changed or touched besides removing stock mani and intake then immediate install of...
  12. Maryland Selling some parts from my 2015 GT - Steeda CAI / NGauge / JMS PedalMAX

    EDIT: Ngauge and Pedalmax are sold. Steeda CAI still available. Hey guys, been a while since I've been on here. Unfortunately, the time has come to say goodbye to my 2015 Mustang GT. While I'm too lazy to pull everything off, including some suspension bits and the Corsa Sport catback, I do...
  13. Iowa Sold: JLT Cold Air Intake with Bama Rev-X tuner (unmarried)

    JLT Performance Cold Air Intake and BAMA Rev-X Tuner 18-21 GT ***UPDATE*** CAI sold. Tuner still available. $200 obo. Installed this and drove maybe 300 miles before I decided to go a different route. Nothing wrong with any of it and it's all there. Paid $800 for the intake, tuner, and...
  14. Thoughts on Injen Evolution CAI (2020 Mustang GT Premium)

    Thoughts on the Injen Evolution cold air intake for a 2020 Mustang GT? How is it regarding any noticeable difference, gains, cooling, etc? Link to product posted for reference. https://www.americanmuscle.com/injen-mustang-evolution-cold-air-intake-evo9202.html
  15. Canada - Ontario Cold Air Intake kit for S550 Ecoboost Mustang

    Selling a Cold Air Intake kit for S550 Ecoboost Mustang. Comes with reusable air filter, piping, heat shield and all mounting bracket and screws. Gives better throttle response and cool blow-off sound. $200
  16. Tuner can't tune my cai and has given up on me.

    I am tuned by a reputable remote tuner (not palm beach dyno or lund). They have been pretty good to me until recently. I have always had a shifting issue from 3rd-4th but that hasn't been too much of an issue. But after I got my jlt cai they are saying they can't get the tune running right...
  17. CAI for 15-17 GT with 2018+ IM

    Cold Air Intake / Intake Box for 2015-2017 Mustang GT with 2018+ Intake Manifold. I have a 2015 mustang gt with a ported 2018 intake manifold and was looking to get a cai for even more power. What cold air intakes should I be looking for that would fit in my car. The 2018+ intake manifold swap...
  18. Michigan Sold: S550 PARTS

    Sold my car and had left over parts lying around, no need for them and priced to sell! 15-17 Style tail lights. Work perfectly fine but as you can see in the picture, the passenger side one had a little crack on the back but not on the Lens house so no moisture gets it. Already in styrofoam...
  19. California WTB JLT CAI for 2019 RTR

    Hey guys, I’m looking to see if someone on here is selling a JLT cold air intake. I wanna buy one to pair with my bbk long tube headers. Thought I should I get a CAI before I throw my LTH on since I will need a tune anyways and there is no point to spend the extra money on a retune after getting...
  20. The 2020+ Shelby GT500 WD152 intake available here at Lethal Performance!

    2020+ Shelby GT500 WD152 Intake Available only through us here at Lethal Performance! Fits stock & some aftermarket TBs Available with optional plug & play PCV setup (or you can modify your factory PCV tube) Direct link...





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