No emmisions here in this province, so straight 3" with no egr and maybe a dumpipe for the wastegate (who am I kidding, I want to hear right in another 10 years).
Most of the reason why it blows hot air at that psi is because of the stock cast turbo elbow. Huge restriction with that turbo elbow blocking the wastegate gases. I'd like to see the efficency range of the stock CT26 turbo with the 3.0L engine.
I'm taking mine off on the new engine. Seems to be a source of BHG on turboed engines, aswell as the N/A's if you're driving hard enough. The turbo recirculates the exhaust gases anyway.
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