Does it make sense to install JB3 and ONLY JB3?

startover · 09-23-2009, 01:11 AM

I have a leased 135i and I really don't want to install anything that I have to take off later (intake exhaust etc) and return to stock, except for the JB3 mod which is supposely an easy bolt-on and obviously gives the most gain. And that's probably all I needed (just a little extra woop for the very rare spirited driving).

So my question is , do you think it's worth it to go for JB3 only and leave everything else stock? Will stock intake/exhaust etc become significant bottleneck for the increased power? I understand that aftermaret intake/exhaust etc will likely give more gains paired with JB3, but how much are we looking at here?

P.S. With correct installation it won't trigger any codes right? And it should be non-detectable after it's taken off?

NihonX · 09-23-2009, 06:25 AM

Probably get an intake. It's not as much a PITA as exhaust and or downpipes

JB3 can't go without a BT Scanner, be sure to pick one up.

M3R1 · 09-23-2009, 06:54 AM

Quote:

Originally Posted by startover

I have a leased 135i and I really don't want to install anything that I have to take off later (intake exhaust etc) and return to stock, except for the JB3 mod which is supposely an easy bolt-on and obviously gives the most gain. And that's probably all I needed (just a little extra woop for the very rare spirited driving).

So my question is , do you think it's worth it to go for JB3 only and leave everything else stock? Will stock intake/exhaust etc become significant bottleneck for the increased power? I understand that aftermaret intake/exhaust etc will likely give more gains paired with JB3, but how much are we looking at here?

P.S. With correct installation it won't trigger any codes right? And it should be non-detectable after it's taken off?

You can safely run maps 1-5 with a JB3 only, maps 4-5 you should run at least 93 octane. Plug it in and enjoy.

Oh, and as the post above mentioned, get a BT scan tool...

6spdMSport · 09-23-2009, 07:54 AM

Oh yes, it does trust me. I paired it with the BMS DCI and took off the rear section muffler and it screams. My tires set loose 1st 2nd and 3rd.

AchtungF80 · 09-23-2009, 08:07 AM

If you're leasing, I'd say a JB3 is an easy on/off mod. I really don't think intakes are worth the hassle on turbo cars.

imported_mega · 09-23-2009, 08:21 AM

Quote:

Originally Posted by 6spdMSport

Oh yes, it does trust me. I paired it with the BMS DCI and took off the rear section muffler and it screams. My tires set loose 1st 2nd and 3rd.

you did what to your muffler ?

oneintheory · 09-23-2009, 08:34 AM

Quote:

Originally Posted by imported_mega

you did what to your muffler ?

i, like, completely eliminated the backpressure by taking it all the way off while one of these gets made for me:

the bigger the tip, the better the flow, yo.

Xin1120 · 09-23-2009, 08:40 AM

LOL

Muffnbluff · 09-23-2009, 08:44 AM

I say don't bother with anything else but the JB3, it's going to give you the best bang for the buck. The intake/exhaust will be more for sound than performance unless you add downpipes to the mix.

Mike@N54Tuning.com · 09-23-2009, 11:49 AM

Actually most customers do JB3 only, or maybe a JB3 and a BMS drop in filter. It's the easiest combo for install/removals and you pickup huge gains.

Mike

SB135 · 09-23-2009, 07:41 PM

You're going to need an upgraded FMIC and downpipes. You'll get used to the JB3 and want more and the FMIC and downpipes are the only two other available options that are going to given you noticeable power, power the you acutally "feel". My .02.

themyst · 09-23-2009, 11:47 PM

If you go JB3 with NO other mods, set it, forget it, and enjoy! Map 3 is a beast compared to stock. If you have 93 octane in your state, you can run Map 5 for some extra power.

HPFREAK · 09-24-2009, 12:06 AM

If you do the JB3 you will want the BMS tuning gauge as well. It is a neat tool. reads IAT, Boost, you can switch maps on the fly as well. The BT tool would be the only other must have.

themyst · 09-24-2009, 12:10 AM

Quote:

Originally Posted by HPFREAK

If you do the JB3 you will want the BMS tuning gauge as well. It is a neat tool. reads IAT, Boost, you can switch maps on the fly as well. The BT tool would be the only other must have.

Although I have one, it's a nuisance if you have to take it to the dealer. You'd be hard pressed to miss a stray cable coming out from the firewall to the ECU. Unless you're comfortable taking the JB3 out for warranty claims, I would not recommend getting a tuning gauge.

FWIW, I have NEVER set off a tuner detection code or tune-related code on my MSD81 with a JB3. Personally, if I had JUST a JB3 non-beta with no supporting mods, I might not even need the BT tool. With that being said, it's a GREAT diagnostic tool... but if you are going with a conservative map, it is not a necessity IMO.

HPFREAK · 09-24-2009, 12:37 AM

Quote:

Originally Posted by themyst

Although I have one, it's a nuisance if you have to take it to the dealer. You'd be hard pressed to miss a stray cable coming out from the firewall to the ECU. Unless you're comfortable taking the JB3 out for warranty claims, I would not recommend getting a tuning gauge.

FWIW, I have NEVER set off a tuner detection code or tune-related code on my MSD81 with a JB3. Personally, if I had JUST a JB3 non-beta with no supporting mods, I might not even need the BT tool. With that being said, it's a GREAT diagnostic tool... but if you are going with a conservative map, it is not a necessity IMO.

No it is not just for reading codes though. It is great for logging, and the tune gauge and JB3 are not hard to take off before servicing. I know about both the products and they are easy to deal with.

WhiteOne · 09-24-2009, 07:36 AM

If you are only doing one mod, it should be JB3.
Set it to map O for service.
Remove it when you turn in the car.
About $350.
A reflash is probably better, but you can't set them to map O for service.
Anyone driving your car at the dealer will notice the added power.
Goodbye warranty.
JMHO

pi2 · 09-24-2009, 07:54 AM

I run JB3 alone with no other mods...

map 1 to 3 without any problems,no codes,no lights

the power increase is very

scott135i · 09-24-2009, 08:52 AM

I have a leased 08 135i auto, and I run JB3 map 6 & 7 (on 93 oct obviously) all day, in temps up to 90 degrees with no problems and no codes at all. The only thing is that after hard driving, there are heat soak issues, but the JB3 will adjust and throttle back boost as to ensure there is no damage from overheating.

Get the JB3, you'll never regret it.

09-23-2009, 01:11 AM	#1
startover Enlisted Member 11 Rep 33 Posts Drives: Join Date: Aug 2008 iTrader: (0)	Does it make sense to install JB3 and ONLY JB3? I have a leased 135i and I really don't want to install anything that I have to take off later (intake exhaust etc) and return to stock, except for the JB3 mod which is supposely an easy bolt-on and obviously gives the most gain. And that's probably all I needed (just a little extra woop for the very rare spirited driving). So my question is , do you think it's worth it to go for JB3 only and leave everything else stock? Will stock intake/exhaust etc become significant bottleneck for the increased power? I understand that aftermaret intake/exhaust etc will likely give more gains paired with JB3, but how much are we looking at here? P.S. With correct installation it won't trigger any codes right? And it should be non-detectable after it's taken off?
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09-23-2009, 06:25 AM	#2
NihonX Captain 63 Rep 901 Posts Drives: 2011 VO 1M Join Date: Sep 2008 Location: Antioch iTrader: (8)	Probably get an intake. It's not as much a PITA as exhaust and or downpipes JB3 can't go without a BT Scanner, be sure to pick one up.
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09-23-2009, 07:54 AM	#4
6spdMSport Private 5 Rep 94 Posts Drives: Jet Black 135i Sport/USB/iPod Join Date: Aug 2009 Location: 727 iTrader: (-2)	Oh yes, it does trust me. I paired it with the BMS DCI and took off the rear section muffler and it screams. My tires set loose 1st 2nd and 3rd. __________________ 09 Jet Black 135i /// M-Sport BMS DCI /// JB3 2.0 /// AA Chargepipe & BOV /// AA FMIC /// VK Downpipes /// H&R Super-Sports /// SpunTek Custom Piping/// Miami Muffler Custom Cat-Back(Straight Pipe)/// BMS CDV/// Carbon Fiber Grills/// DEFI Boost Gauge
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09-23-2009, 08:07 AM	#5
AchtungF80 Brigadier General 276 Rep 3,465 Posts Drives: 997.2 GT3, '17 G30 Join Date: Apr 2006 Location: NJ iTrader: (2) Garage List 2008 135is [9.50] 2010 Cooper S [10.00] 1991 318is [10.00]	If you're leasing, I'd say a JB3 is an easy on/off mod. I really don't think intakes are worth the hassle on turbo cars. __________________ ig: 0verrev
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09-23-2009, 08:40 AM	#8
Xin1120 Captain 41 Rep 667 Posts Drives: 135i Coupé Join Date: Jun 2008 Location: Texas iTrader: (1) Garage List 2008 135i Coupé SOLD [0.00]	LOL
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09-23-2009, 08:44 AM	#9
Muffnbluff Redline Addict 21 Rep 783 Posts Drives: '14 BMW 335 xdrive Join Date: Sep 2008 Location: STL iTrader: (0)	I say don't bother with anything else but the JB3, it's going to give you the best bang for the buck. The intake/exhaust will be more for sound than performance unless you add downpipes to the mix.
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09-23-2009, 11:49 AM	#10
Mike@N54Tuning.com Joint Chiefs of Staff 4908 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Actually most customers do JB3 only, or maybe a JB3 and a BMS drop in filter. It's the easiest combo for install/removals and you pickup huge gains. Mike
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09-23-2009, 07:41 PM	#11
SB135 Private 3 Rep 67 Posts Drives: 09 135 Join Date: Sep 2009 Location: South Bay iTrader: (0)	You're going to need an upgraded FMIC and downpipes. You'll get used to the JB3 and want more and the FMIC and downpipes are the only two other available options that are going to given you noticeable power, power the you acutally "feel". My .02.
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09-23-2009, 11:47 PM	#12
themyst Major General 177 Rep 6,631 Posts Drives: '16 MK7 GTI Join Date: Feb 2009 Location: NYC iTrader: (8)	If you go JB3 with NO other mods, set it, forget it, and enjoy! Map 3 is a beast compared to stock. If you have 93 octane in your state, you can run Map 5 for some extra power. __________________ E90 LCI N54 6AT
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09-24-2009, 12:06 AM	#13
HPFREAK Lieutenant Colonel 63 Rep 1,884 Posts Drives: C6 ZO6 Join Date: Sep 2009 Location: Socal iTrader: (8)	If you do the JB3 you will want the BMS tuning gauge as well. It is a neat tool. reads IAT, Boost, you can switch maps on the fly as well. The BT tool would be the only other must have. __________________ My Youtube Channel
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09-24-2009, 07:36 AM	#16
WhiteOne Major 28 Rep 1,000 Posts Drives: 2008 AW 135i Join Date: Dec 2007 Location: Alabama iTrader: (0)	If you are only doing one mod, it should be JB3. Set it to map O for service. Remove it when you turn in the car. About $350. A reflash is probably better, but you can't set them to map O for service. Anyone driving your car at the dealer will notice the added power. Goodbye warranty. JMHO
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09-24-2009, 07:54 AM	#17
pi2 Private 6 Rep 56 Posts Drives: 135i AW Join Date: Mar 2009 Location: Geneva iTrader: (0)	I run JB3 alone with no other mods... map 1 to 3 without any problems,no codes,no lights the power increase is very
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09-24-2009, 08:52 AM	#18
scott135i Colonel 355 Rep 2,080 Posts Drives: 2020 X5 M50i Join Date: Feb 2009 Location: NYC Metro iTrader: (12)	I have a leased 08 135i auto, and I run JB3 map 6 & 7 (on 93 oct obviously) all day, in temps up to 90 degrees with no problems and no codes at all. The only thing is that after hard driving, there are heat soak issues, but the JB3 will adjust and throttle back boost as to ensure there is no damage from overheating. Get the JB3, you'll never regret it.
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