I have been reading various threads on boost controllers vs stock ECU boost control (there are a lot of threads about it) but I still can't really nail down the answers I'm looking for.

My car is stock except for the TBE (downpipe, HFC, & exahust). I don't drag race. I don't really care about bragging about numbers (ie, I run x psi or hp more than you). I just daily drive the car and use it on a road circuits for DE events. Tapering of boost does not really bother me but I would like it to spool up as quick as possible. Would prefer not to have boost spikes. Also, I'm not going to be running any crazy boost levels with a stock turbo anyway...I believe ~22-24 is basically the max.

I went to get a Dyno Tune and it was suggested that I get a Perrin EBCS (http://www.perrinperformance.com/pro...ory=37&model=3). It plugs into the car's ECU and is apparently still controlled via the stock ECU (as part of the tune)

From lots of reading, it appears that the EBCS will not taper boost at higher RPM's as the stock boost solenoid does despite ECU tweaks. How does the lack of boost taper translate to the TQ and HP? Significant enough to care about the 3 psi in the last 2000 rpm's?

Do you guys think this is really worth the $100? What will I really gain by adding this part? Would it improve spoolup? Are there any dyno charts where the only mod is one of these EBCS's to see what improvement it has over the stock boost control solenoid?

Thanks.

 

Found a few other posts on the subject... supposedly it also allows quicker response if installed as an interrupt system (as opposed to a bleed system).

Also allows for holding higher boost, which does not matter for my application.

Update: For those in the same boat as me, I finally found some threads that have decent info in them:
https://www.evolutionm.net/forums/ec...-solenoid.html
https://www.evolutionm.net/forums/ve...enoid-evo.html
https://www.evolutionm.net/forums/ec...ting-data.html