Hello again, been mode active around my s13 laterly and rn im readoing my whole hot side, since my oem manifold cracked pretty bad and found out it was rewelded before: Then i bought some aftermarket 1:1 copy of turboworks one :https://race-shop.cz/81997/ladene-vyfukove-svody-pro-nissan-200sx-s13-ca18det.jpg Those were going good till i shot my studs on turbo clean (all of them) but i was not running flexi element. And after second redo it started leaking from all over the place, after taking all off, turbo was shot (what is good since it was smoking as hell) and Headers are bend like a croissant, few nuts loose and one treading in manifold gone: TLDR, i dont trust mechanics now and i wanna do it myself once and proper seeing as mechanics nowdays dont care about your car as you and want to be over with it. So im asking for advices/experiences what helped you guys, im getting T28 instead of redoing my T25, sending my old headers back to get the same one but not bend i already have cometic gackets for headers-block. -Im thinking of getting new arp studs since oem ones are not best condition and can also be issue seeing as they are holding heavy turbo and manifold+elbow. -Gonna most likely redo my flexi element since its tiny and the pipe is smaller diamtere than rest of the exhaust. -Ive heard about dual layer gaskets for turbo also but cant find them, so im thinking about using classic metal one and copper spraying it since last one cracked. -Gonna use locking METAL not copper nuts on all connections and also try to get hold on locking tabs -And lastly just wanted to confirm a location of oil feed for turbo on CA block, since turbo was shot good and when i disconnected it there was not a drip of oil coming from feed. Thanks everyone for reading and looking forward to hear your opinions and experiences.