[bimmerfan235]

Hey everyone,

I am really interested in tuning my 2 month old M235i. I would definitely not mind a little more power in the car. Ive heard a lot of recommendations about a JB4. I really don't know much about tuning at all and would love if someone would recommend some good threads or websites that would inform me of what options there are, how it all works and above all, WHAT ARE THE RISKS as this is a lease. If you guys want to leave some info on this thread that would be great as well although I know there are already a ton of these threads out there.

Thanks a lot!!!!!!

[kdog26372]

Originally Posted by bimmerfan235

Hey everyone,

I am really interested in tuning my 2 month old M235i. I would definitely not mind a little more power in the car. Ive heard a lot of recommendations about a JB4. I really don't know much about tuning at all and would love if someone would recommend some good threads or websites that would inform me of what options there are, how it all works and above all, WHAT ARE THE RISKS as this is a lease. If you guys want to leave some info on this thread that would be great as well although I know there are already a ton of these threads out there.

Thanks a lot!!!!!!

I'll keep this short and simple. If all you want is a bit more power and aren't going to add additional parts like catless downpipe or run meth mix, stick with the ease of installation of one of the various Stage 1 tunes that use 2 plugs and take 5 minutes to install. You'll get an extra 35-50 hp and 45-60 torque. I use the Racechip Ultimate, but I've also used the lower cost JB Stage 1 for another BMW with same engine. I think the Racechip is smoother in power delivery, but it's also double the cost. You sound like perhaps a novice in the tuning of BMW's, so simpler the better as you won't most likely use all the extra features the JB4 can and the install taps into some wires and isn't the 5 minute install the Stage 1 tunes are. That's my simple take. Enjoy

[rmshashaty]

Use the search tab, every other day there is a new thread on JB4. Perks of doing research on your own is you will learn more than just asking a question. Also check out n54tech.com for more information than you can handle

[kerm1t]

honestly, learning how to tune a jb4 is not hard at all. i learned most of the stuff on here when i first got my car. Plus if you have questions, terry over at jb will be more than willing to help you.

[r33_RGSport]

bimmerfan235 , come by when you have time. I can show you my X5 with the JB4, Catless dp, and chargepipe.

[mike@x-ph.com]

Originally Posted by bimmerfan235

Hey everyone,

I am really interested in tuning my 2 month old M235i. I would definitely not mind a little more power in the car. Ive heard a lot of recommendations about a JB4. I really don't know much about tuning at all and would love if someone would recommend some good threads or websites that would inform me of what options there are, how it all works and above all, WHAT ARE THE RISKS as this is a lease. If you guys want to leave some info on this thread that would be great as well although I know there are already a ton of these threads out there.

Thanks a lot!!!!!!

Hi,
As mentioned above, start with a stage 1 tune. It will give you a nice increase in power without putting too much stress on the engine. I would get the JB stage 1 because it offers flexibility in terms of power gains. You can select to add more boost if you want to go more aggressive.
As for risks, more pressure on components may shorten their lives. That being said thousands of users are using these tunes without a problem so i would not be too worried about it.