Originally Posted by BGB Motorsports

After talking to multiple tuners, only one can guarantee that the CEL will not show up for too much air from the 82mm TB and that's the ECU from Germany. At this point, the U.S. offering is working on guaranteeing that the IPD/82mm TB won't set off a CEL with a modified tune but it's early to tell as most GT4 owners haven't jumped on board with the Plenum upgrade. However, my car is running GT4 firmware with porting, 82mm TB and X51 manifold and I only have CELs for the lack of cats but not for the MAP/MAF implausible so, as for right now, the same people who are 50/50 on whether or not their software accommodates for it, are ending up on successful side of the experiment.

I have finished 3 offerings that list what is in each stage and how much it costs. Should I post them here or start a new thread?

Originally Posted by BGB Motorsports

I have finished 3 offerings that list what is in each stage and how much it costs. Should I post them here or start a new thread?

Originally Posted by Beantown Kman

John, this thread already has 32 pages with close to 500 posts. At this point it is getting hard to follow. I suggest you post information on the BGB website. This will provide one place where everyone can go to quickly and easily access the information we want. I suggest you provide a complete menu of modifications and upgrades along with whatever related information people may want to see.

Originally Posted by ShakeNBake

My car was immediately throwing a MAS minimum airflow error, but they managed to clear it using a series of re-adaptations that are in "hidden" menus in the PIWIS. I have maybe put 15miles on it since the plenum was installed, so I may still get a CEL in the near future. COBB does not have an off the shelf tune for any mods yet, so we'll need to wait for a while it seems. They are working on what they call a stage II tune.

Originally Posted by bhk1004

You don't have to wait for cobb. Custom tuning should be able to turn off or tune out any cel. Well at least that's been the case with my previous car. I also am not a fan of 1 size fits all tuning. Definitely recommend getting a custom tune even if it's an etune from a tuner you trust.

Bgb do you offer etunes?

Originally Posted by BGB Motorsports

In the works as we speak! I will be on the dyno all day Monday with the car and helping build some Stage II maps for Cobb who will be releasing GT4 files shortly for cars that have headers, Plenums, etc. I will try and answer the rest of the questions shortly. I have recovered from the SwineFlu and we are on track at Sebring for 4 days with cars.

When we did the first X51 install on a 981 I had prototyped the fitment. Since then I have a coolant tank being made so that it's literally a matter of swapping parts and not grinding anything anymore.

Originally Posted by Phokaioglaukos

Concur. One way to break out the information in a way that would be useful to me is to separate out the modifications into two categories--those that require a tune to be effective or to avoid a CEL and those that do not.

Originally Posted by bhk1004

You don't have to wait for cobb. Custom tuning should be able to turn off or tune out any cel. Well at least that's been the case with my previous car. I also am not a fan of 1 size fits all tuning. Definitely recommend getting a custom tune even if it's an etune from a tuner you trust. Bgb do you offer etunes?

Originally Posted by Phokaioglaukos

Concur.

One way to break out the information in a way that would be useful to me is to separate out the modifications into two categories--those that require a tune to be effective or to avoid a CEL and those that do not.

Originally Posted by ChrisF

Yes and every time I get out of my GT3, I think "if only the GT4 had power like this, it would be perfect!"

There is a big gap between the GT3 in feel based on power and gearing.

Originally Posted by turbofreeFLAT6

A little off-topic but how involving and rewarding do you find the handling of the 4 vs the 3?

Originally Posted by ChrisF

Both are very involving to drive. The GT4 is easier to drive fast out of the box. Drivetrain of the GT3 is hands down better.

If I were only to ever experience one on track, I'd consider myself lucky. Both cars have spoiled me for life.

Originally Posted by bhgt2

Has anyone seen a proper custom tune on cobb that maximizes the benefits of the TB and plenum?

Originally Posted by COBB Tuning

We're still going testing to sort out the occasional CEL lights due to the larger TB. Once we have that sorted out we'll be releasing OTS maps and there will be custom maps from your preferred ProTuner as well.

~Jared

Originally Posted by turbofreeFLAT6

If the GT4 had the GT3 motor, which would you choose?