Ok, quick opinions,

I have an fd that I purchased bone stock, I added a downpipe, gauges and a drop in K & N filter my boost pattern has been a consistent 11/12-8-10 using the third gear boost test. Last night I bolted up a Greedy SP cat back. Is it ok to run stock ECU and boost control? Do I need to think about an ECU at this point? Or will a MBC controller work? Has anyone just ran a single MBC on the primary turbo side because I have not seen spiking at all. Just some questions, I will not add an intake, hi-flo cat, or intercooler until I get an ECU of course.
feedback please

 

Jesus Marimba, this topic has been beaten way past death!

You can run all the bolt-ons with the stock ecu, as long as you keep the boost at 10 psi. Period. Anyone who says otherwise doesn't know what they are talking about.

A single MBC/EBC is installed on the wastegate line (there aren't primary/secondary wastegates, just one).