LouzGT Posted September 30, 2011 Share Posted September 30, 2011 Just wanted to get some opinions for me getting a grimmspeed bcs on my stock turbo have my protune in two weeks is it worth it? Would I see any advantages over the stock 2-port on my stock turbo? Would it just hold boost longer to redline? Any info would help thanks. Link to comment Share on other sites More sharing options...
Legend Posted September 30, 2011 Share Posted September 30, 2011 I run the GS BCS and like it a lot. It (or any 3-port for that matter) allows more fine control of boost tuning and slightly quicker boost response in some situations. OP, I would not get it if I were you. There is very, very little advantage in a stock turbo car and what advantage there is does nothing to make more power or hold more boost to redline. You are limited by the capacity of the turbo itself. It will run more boost if you want it to (with either stock BS or the GS unit) but there comes a point when you leave the efficiency island of the turbo and make more heat and less power. Your dyno plot will look the same either way. On the street you'll notice a slightly quicker response (assuming your tuner sets it up right) but the stock turbo already spools quickly. Save your money. My '05 LGT My '07 Supercharged Shelby Link to comment Share on other sites More sharing options...
black318i Posted September 30, 2011 Share Posted September 30, 2011 Just get a 1mm pill. It does almost as well for $105+ less. Link to comment Share on other sites More sharing options...
LouzGT Posted October 2, 2011 Author Share Posted October 2, 2011 thanks Legend can't wait for my protune I'll post some numbers Link to comment Share on other sites More sharing options...
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