Wheel Trim | Turbobygarrett
First read the tag on the chra. Then search
www.turbobygarrett.com. If it's missing remove, exhaust and compressor housings and measure the inducer and exducer.
I don't think it's necessary though, unless you were sold a gt3071r?!? Either way, you still win!
Manifold, Get a stock manifold fitted with an external gate, Hit up Cody Ace, or your local welder. Don't mess around with the crackafolds. If you have to use a megan type manifold, use the internal gate for now. Just check the wastegate with a pressure source, make sure it fully opens without sticking and then slowly add pressure to see when it starts to crack. If the internal gate is adjustable? Make it looser than 10psi(crack) and keep an eye out for boost creep. I'm sure you have all the supporting mods already, but add a decent EBC to your list, if you don't already have one. I hope you understand that gibberish...I'm a little smeenashed!