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yes ....I will try to log some data soon ....thanks

Thanks Benzy89 I will try to replace my DVs to see is this the problems that slow my car down. thanks.

Sorry forget to mention I had Procede V5 and do I need to change aftermarket BOV? Can the stock BOV hold the V5 map1, map2+meth pressure with upgraded turbos? thanks

Yes, I don't want that loud noise. thanks

so my stock muffler is fine with upgraded turbos? thanks

What I had is a single 3" midpipe, So you think twin 3" will works better with upgraded turbos? what about my stock muffler? enough air flow with upgraded turbos? I only make 9.5sec for 100-200...

Hi ... I had DP+76mm straight midpipe+ stock muffler right now and I had put upgraded turbos on

my car now. Is the exhaust setup ok for upgraded turbos? What do you recommend? Thanks.

6.5sec what a good number! my FBO+meth+upgraded turbo E92 can only run 9.8sec then two days after my 3rd gear clutch slip. Just get my tranny back yesterday will try again maybe 2-3 weeks after.

Yes I like to know the100-200 times about the upgraded turbo too. Thanks

I think I had same sound like you at 1800rpm(catless from DP to X pipe with stock muffler)
now, catless DP then ONE straight pipe to stock muffler the weird rasp sound is gone and no drone at all