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Carmax and a tune
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11-25-2012, 08:24 PM | #1 |
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Carmax and a tune
HI Guys I purchased my car from Carmax and I have Maxcare up ro 100,000 miles. I am planning on getting a tune (either Jb4 or Cobb) and was wondering if anybody here with a Tune had any experience with Carmax warranty?
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11-25-2012, 08:50 PM | #2 |
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I'm not sure how CarMax is with their warranties & you might want to read up on it because even just swapping out the intake might void their warranty.
If you're forced to stay 100% stock under the warranty agreement, you'll prob benefit more from the JB4 & running E85 blends. If you can mod (Intake, DPs, etc) & the tune would be the only concern, the COBB would make much more sense & offer greater performance gains. |
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11-25-2012, 09:24 PM | #3 | |
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E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust, Tuned by TwistedTuning More Pictures: Build Thread /// 683AWHP/675AWTQ |
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11-25-2012, 09:27 PM | #4 |
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Gaswise LA sucks! I havent seen any gasstations here in LA offering E85 or even 93. I'm more into JB4 with DCI on map 1 only so I dont know if this is a dumb question but is it possible to take both the tune and the DCI off and take it to the dealer?
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11-25-2012, 09:29 PM | #5 |
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Yes it is possible. Idk about DCI install but it looks pretty simple. Uninstalling the JB4 takes 15 minutes once you get used to it and do it a few times
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E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust, Tuned by TwistedTuning More Pictures: Build Thread /// 683AWHP/675AWTQ |
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11-25-2012, 09:31 PM | #6 | |
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COBB > Piggys The COBB Shelf Maps against a JB4/Vishnu is very accurate since the COBB maps are kept intentionally very conservative (otherwise people wouldn't be seeing 40-50 HP gains from their ProTunes). I mean if you don't mind uninstalling/reinstalling everytime you have to get service, I'd say go for it. You'll be under the hood anyhow to remove the JB4, so removing the DCI won't be that much more of a hassle. |
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11-25-2012, 09:52 PM | #8 | |
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E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust, Tuned by TwistedTuning More Pictures: Build Thread /// 683AWHP/675AWTQ |
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11-25-2012, 09:55 PM | #9 |
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Sorry...misunderstanding with your post...My bad =="
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2006 Lamborghini Gallado / 1997 E36 328 coupe / 1991 Z32 300zxTT Stage XII 1996 Mustang Cobra Sold 1994 E31 850csi Sold Last edited by calvinwu; 11-25-2012 at 10:15 PM.. |
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11-25-2012, 10:58 PM | #11 | |
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11-26-2012, 01:04 AM | #12 |
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I bought mine through carmax and have bought maxcare, I just installed JB4 and DCI anyways. Easy to take out if you have to do warrantee work. Plus you can just take it to the dealership for your warrantee work, and just ask em to not mention the mods, and buy your SA a 12 pack
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11-26-2012, 01:46 AM | #13 | |
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11-27-2012, 08:21 PM | #14 |
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Im running map 5. And whoah boy do I notice power... As a weird form of comparison, I used to set my Iphone in the dash shelf type place where iDrive is. Before JB4 on WOT it wouldnt even budge (this is with a rubber case). Now, I cant set it there anymore because on WOT it ALWAYS slides off. With DTC off i can break loose in 2nd gear where it used to be impossible to do even in 1st. And 4 wheel drifting is a blast, bad for the car, but sometimes I cant resist.
So far no problems knock on wood. But if there are problems I just take a pic with my phone of the dash lighting up, take out the tune (which clears codes) and take to dealership. When they ask where the code is I say i have a OBDII reader and I cleared em and am trying to get them to reappear in an attempt to self diagnose the car. They are none the wiser. Couple sidenotes: When you DO get JB4, when the engine is cold, it won't boost above about 8PSI (kinda confused me at first, thought something was wrong with the car, but turns out it wasnt warm yet >160) Also, the DCI is kinda scary in that you definitely hear the air whooshing in your engine and you can definitely hear the oscilation in the amount of air taken in. Also scares me when things arent smooth and consistent. Im just gonna have to get over it. Questions, concerns, complaints, painful revelations?
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11-27-2012, 09:23 PM | #15 |
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Just remove the piggy back or Cobb before you go in for warranty work. I doubt they have the capability of reading how often your car is flashed. Interesting note...GIAC told me my car was flashed twice before they flashed my car. They doubt the dealer (and I assume Carmax) has this capability. At least I was never told by my dealer the car has been flashed, even when I had my 135 with Cobb.
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11-27-2012, 10:36 PM | #16 | |
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E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust, Tuned by TwistedTuning More Pictures: Build Thread /// 683AWHP/675AWTQ |
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11-28-2012, 12:14 AM | #17 | |
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Definitely like what you have done with your car. Something I aspire to get done in my copious spare time... hows the TC holdin up?
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11-28-2012, 02:17 PM | #18 | |
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Thanks, hopefully gonna order a few more cosmetic mods today. As far as performance I think I might be done other than adding an exhaust although that doesn't really count. So far TC and clutch are holding up perfectly. I don't do any hard launches and rarely do moderate launches. I am the second owner and I think the car may have a aftermarket clutch although idk... It was one of the stiffest clutch's i've ever driven and it sometimes engages very harsh. I'm also surprised its not slipping considering the car has 52k miles and the power it's probably making... I'm hoping to hop on a dyno sometime soon in the next few weeknds.
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E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust, Tuned by TwistedTuning More Pictures: Build Thread /// 683AWHP/675AWTQ |
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