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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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Old 04-26-2014, 09:03 AM
Wjt5 Wjt5 is offline
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Location: Quantico VA
Join Date: Apr 2014
Posts: 5
Mein Auto: 335xi
Talking Cobb V3 vs JB4 vs JB+ quick install

Looking at installing a tuner on my 08 335xi any recommendations? What are you guys running? Any other tuners you can think about that I should consider?

I don't get to do much tracking and just enjoy a little extra HP for the street and occasional track, so I'm strongly looking at the JB+. The V3 though cost more but is way more adjustable and can be completely uninstalled easily. (I'd like to have a quick uninstall when I take it in for service)
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Old 04-26-2014, 09:44 AM
Dwight_Schrute's Avatar
Dwight_Schrute Dwight_Schrute is offline
I Know Nothing
Location: Sunny Pacific Northwest
Join Date: Feb 2009
Posts: 659
Mein Auto: '10 E92 335i
All three are great products and your assessment is correct about JB+ and Cobb being the easiest to install/uninstall. Not sure you can beat the JB+ for the price but I've heard a lot of people soon want more power after the install.

I've heard the Cobb is more on par with the JB4 when it comes to features and adjustability. I have the JB4 and love it but its a way more intrusive install - you have to get into the ECU - as opposed to just hooking the Cobb up to your OBD port. The JB4 isn't necessarily a difficult install, just more time consuming and physically involving.

Sounds to me you'd be happier with either JB+ or Cobb. May just boil down to price and whether or not the added functionality and power is worth the extra coin to buy the Cobb. I personally think it is.

You'll enjoy whatever you get, I'm fairly certain of that.

2010 E92 335i
2011 Range Rover Sport Supercharged
1984 Toyota Tercel Wagon 4WD
2007 E93 328i (Sold)
2002 Ford Focus SVT (Sold)
2001 Ford SVT Lightning (Sold)
1992 Ford Taurus SHO (Totaled)
1983 BMX (Totaled... Twice)
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Old 04-26-2014, 10:23 AM
SuperTerp SuperTerp is offline
Officially Welcomed to the 'Fest
Location: DMV (DC, MD, VA)
Join Date: Dec 2010
Posts: 3,228
Mein Auto: m4now M5M3 550 760 335RIP
Hahah so many threads on this bro, and so much readily available information

Quick cause I hate when people scold me and don't answer:

Cobb= Little less HP than JB4, ability to custom tune + (so dose JB4 iso), VERY EASY TO INSTALL

JB4= cheapest, need to know what you're doing under the hood, most hp
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Old 04-27-2014, 02:07 PM
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BuraQ BuraQ is offline
Moding is Addictive
Location: Florida
Join Date: Sep 2011
Posts: 151
Mein Auto: DCT 335is powered by PTF
Installing Cobb is as simple as pressing couple of buttons, go get something to eat for about 23 minutes. Come back, all done. No tools needed other than being able to read, and you dont get your hands dirty.
COBB ATR Selftuned, Flash Only
DCT 335is 121-122 mph in the 1/4 mile Stock Turbos / Full Weight
No DCT Slippage
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Old 04-27-2014, 02:32 PM
Dseverson Dseverson is offline
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Location: Calgary Alberta Canada
Join Date: Mar 2014
Posts: 4
Mein Auto: 2011 335i
I just bought the Accessport V3. Easy to install. I'm running the stage 1 aggressive and it makes a noticeable difference.
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