OK guys, I installed following bits & pieces, and now I'm seeing slightly less than 1.1 bar instead of previous 1.3bar. I'm running external boost controller, no change of settings. EDIT: Yes there was... Also boost drop is consistent. Performance deteration can be seen from datalogs, 80-120 km/h increases from 1.65 sec to 2.4 sec.

Any explanations? Before I just tighten up the settings...

****100 cell race cats / Burns Stainless 3" mufflers / IPD plenum and Y-pipe / Forge BRV's / smaller crank pulley (By 9products)****

 

Well you did something to cause it right? Back track and see. Who's tune are you tuning that you thru on a a ebc on a 997?
Are u non Vtg?
You did something wrong. Do you know how to do a correct pressure test ? Or you never even did one I'm guessing. That's a must.
Markski

 

Move along, move along, there's nothing here to see...


7 months is a long time to rememeber -or forget- that the VTG controller had had a different program. Problem solved.

 

Interesting setup with the Exhaust. I like it.

 

Thanks! I got a new "tailpipe" made yesterday. While that merged one was a nice idea and a necessity because of lack of space, the material was too thin and started to pull & twist. So back to twin pipes, still with a merge. Included also a pic of the strap and support. Stainless, laser cut.