s13envy

I was running open downpipe there and I'm running the HKS step 2 264's...I think i may have a boost leak....I found a questionable coupler with some decnet size cracks in it.

Does anyone know what the 2871R is good for boost wise?

the only thing i dont get is that I trapped 128 in the 1/4...I've never seen any 240 with 375whp trapping that speed. Maybe since I fixed the turbo bolts and clutch slippage the power is up to where it shoudl be now....but i wont know until I get it back to the dyno.