PILL PUSHER

Now i've been looking for a S4 H-box ecu fore a while and it's hard to find one because it seems everybody selling them is misinforming people on there compatibility. Here's a link explaining what will work with what, also Wiki Pedia has info on are ECU"s as well. T-box is not compat. to a H-box. H-box and M-box are only compt. as both sites i've referencd state this. just wanted to clarifiy, no disrespect to you. good luck with the sale<ul><li><a href="http://www.audizine.com/forum/showthread.php?t=139142&amp;highlight=mbox+interch angeable">http://www.audizine.com/forum/showthread.php?t=139142&amp;highlight=mbox+interch angeable</a</li></ul>

BlackS4tt (Josh)

Yeah, hes wrong. M=T, which can be used on an H-car.

Jason Sowers(rs6's)

Even an a box works, Change the Maf and recode cluster.

Skydive@AI

It is possible to convert almost any box to just about any other box given the right tools.

Someone who shall remain nameless converted a J box to an L box for me the other day.

Conventional wisdom is that...

A=B
H=J
M=L
T=AA

M and T are directly interchangeable.
L and AA are directly interchangeable.
H and M interchange by flipping a bit in the cluster control module.
J and L interchange by flipping a bit in the cluster control module.

The fact is, that one can "make" just about any box into just about any other box using some available software, the right cable, and some brain cycles.