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  1. J5races

    Whipple Supercharger w/ BTR stage 2 cam in Cali?

    Are you sure? I thought I read that the OBDII checks fora tune, and then compares legal (registered or known tunes) versus a custom one. And that you fail if its not a known tune CARB has approved. Is that a bunch of nonsense or could that be how it actually happens? Thank you Jon
  2. J5races

    Whipple Supercharger w/ BTR stage 2 cam in Cali?

    If your kit is like mine, it switches main fuel metering to the provided 3 bar map sensor. So I would think you would need. retune to safely make any more power as I dont think the map sensor is going to know you need more fuel to go with the extra flow of a better cam at the same boost level...
  3. J5races

    3.5" Exhaust for 2018 Tahoe 6.2L?

    Im in Burbank. PM me
  4. J5races

    Coolant Temp Sensor lasts about 30 days

    Original radiator? Do the old ones look corroded or fried or perfectly fine? Have you checked a new one versus an old one with a meter to see what they measure? My guess (and just throwing out a possible reason, have never seen this happen on any car) is that somehow voltage is in the cooling...
  5. J5races

    Automatic headlights - Sensor adjustment?

    That sounds right. I guess I am just used to the Mercedes GL450 I had before that would switch in a few seconds
  6. J5races

    Whipple Supercharger w/ BTR stage 2 cam in Cali?

    Whipple kits with a CARB EO# (like I have on my Tahoe) are CA legal. But you cant change anything else (such as a cam) and retain emissions legality. Does your Whipple kit have a CARB # and Whipple provided smog legal tune? IF not, you are going to have a fun, quick truck that isn't CA compliant
  7. J5races

    Automatic headlights - Sensor adjustment?

    No new lights since I bought the truck in 2022
  8. J5races

    Automatic headlights - Sensor adjustment?

    Stays in night mode and doesn't brighten up. The car thinks its night when its not. A lot of sunlight will switch the truck back to daylight if I go for a drive and get driving the perfect angle where it really shines on the sensor. Is the sensor adjustable or just bad? Thank you
  9. J5races

    Automatic headlights - Sensor adjustment?

    I will try that later today, Ill turn off the truck, open the door and close and restart truck. Ill post the result. Thank you both for your time
  10. J5races

    Automatic headlights - Sensor adjustment?

    I assume the headlights, the whole dash stays in night mode with super dim instrument panel and even my Car play changes to night node. Is that helpful? Jon
  11. J5races

    Automatic headlights - Sensor adjustment?

    Hello all, When I go to drive my 2018 Premier Tahoe lately I start the truck up, then remove my Dash protector reflective windshield screen thing. The truck is in headlight night mode because the dash was dark. I understand that. But I can drive away and down the road and because its not super...
  12. J5races

    3.5" Exhaust for 2018 Tahoe 6.2L?

    Thanks all. Sounds like a 3.5" muffler change out is the ticket. Ill look around. Appreciate everyones time and input. IF any of you are in Los Angeles Area love to meet up see what you think of the Whipple. Jon
  13. J5races

    Service 80k mile 10 speed or leave it alone?

    Does the relearn require a fancy AUTEL or similar scan tool? Thank you
  14. J5races

    Service 80k mile 10 speed or leave it alone?

    Correct. Thats what the carfax said. I wrote the wrong thing. :)
  15. J5races

    3.5" Exhaust for 2018 Tahoe 6.2L?

    Did you replace yours with something larger and get a worthwhile gain from that?
  16. J5races

    Service 80k mile 10 speed or leave it alone?

    So I checked out my Carfax and it had the front and rear Dif services at about 50k mi, I saw the center Dif was also serviced in the past. So its just down to the Trans. Hoping someone can weigh in about if relearn is a thing for the clutches(or whatever it does) on the 10 speed. Thank you all
  17. J5races

    3.5" Exhaust for 2018 Tahoe 6.2L?

    Whipple claims the Gen V kit makes 535hp to the wheels. I gotta think bigger exhaust piping will help at that power level.
  18. J5races

    Brembo part numbers

    Do you know the part number of the OEM brake pads? I am looking for pads that have the retaining "barbs" or whatever they call that hold the friction material to the backing plates better than just bonded. I assume the poem Brembo 6 piston pads have those tangs or barbs?? I have heard Power...
  19. J5races

    3.5" Exhaust for 2018 Tahoe 6.2L?

    I didn't realize stock exhaust is 3.5" Seems like I would want a 4" exhaust to breathe better. Anyone know a place that would sell and ship a 4" cat back exhaust that isn't too crazy expensive?
  20. J5races

    Service 80k mile 10 speed or leave it alone?

    I bought my seemingly cared for 2018 Tahoe RST from a Chevy dealer certified used about a year ago with 70k mi and added Whipple and put on about 10k miles since then. I assume the trans and front/rear Dif have never had fluids changed. With this milage would it be smart or foolish to have a...
  21. J5races

    Brembo part numbers

    No ,they require 20" wheels or larger to clear
  22. J5races

    3.5" Exhaust for 2018 Tahoe 6.2L?

    Does anyone know how different a Tahoe exhaust is from a same year Silverado?
  23. J5races

    3.5" Exhaust for 2018 Tahoe 6.2L?

    Anyone know of a 3.5" Stainless exhaust cat back kit for a 2018 Tahoe with 6.2L? I see MPRB sells a 3.5" kit for a Silverado but they said they dont make one for Tahoe. It looks like a few bends are missing on Silverado version. I dont have a TIG welder or any fab tools to mod it myself, does...
  24. J5races

    2018 Chevy Tahoe transmission fluid change

    What about for Tahoe with the 10-speed. I don't have a dipstick In the engine bay. Anyone serviced their 10-speed trans? Thank you Jon
  25. J5races

    Help me choose a cat-back!

    Anyone here with a 2015-2020 with Aftermarket exhaust live in Los Angeles area and willing to meet up for 10 min or so? Love to see/hear one in person. I am happy to drive to you. Just love to see/hear how loud yours is compared to my stock exhaust 6.2 Tahoe Jon

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