spiff Posted July 17, 2013 Share Posted July 17, 2013 Hi, I tried searching but didn't find anything conclusive. I am in the process of swapping a L28ET in to my 280Z but I want to make a better flowing downpipe than stock, I have bought two 45degree exhaust bends but I need a flange for the turbo. Does the T3 DP flanges you find on ebay fit the stock turbo? 4bolt. Like this one: http://www.ebay.com/itm/2-5-4-Bolt-Turbo-Exhaust-Downpipe-Flange-Gasket-T3-50AR-T3-T4-GT35-T3-60-1-/380407544274?pt=Motors_Car_Truck_Parts_Accessories&hash=item58920e79d2&vxp=mtr Or if I wanted to go with V-band would this be interchangable with my stock wastegate housing? http://www.ebay.com/itm/t3-t3t4-5-bolt-turbo-downpipe-flange-to-2-5-v-band-/141012117247?pt=Motors_Car_Truck_Parts_Accessories&hash=item20d4fa26ff&vxp=mtr Quote Link to comment Share on other sites More sharing options...
Tony D Posted July 17, 2013 Share Posted July 17, 2013 No Quote Link to comment Share on other sites More sharing options...
R3VO 3VOM Posted July 17, 2013 Share Posted July 17, 2013 Do you have the stock downpipe? If you are set on making a better flowing one, why not cut the flange off the stock one and go from there? Quote Link to comment Share on other sites More sharing options...
BluDestiny Posted July 17, 2013 Share Posted July 17, 2013 You would need to have your own flange cut. I believe the exhaust exit is something like 1.5 inches or some stupid small opening, which is why the 2.5" won't work. Quote Link to comment Share on other sites More sharing options...
spiff Posted July 17, 2013 Author Share Posted July 17, 2013 Do you have the stock downpipe? If you are set on making a better flowing one, why not cut the flange off the stock one and go from there? Yes I have the complete exhaust from downpipe and to the cat I believe, but isn't the stock DP cast iron? Isn't that hard to weld to stainless? The exhaust bends I have bought are 2.5" stainless steel... There wouldn't happen to be anyone here with a CAD drawing of the flange? I have a friend with access to a cnc mill but he needed a cad drawing to give to the operator.... Quote Link to comment Share on other sites More sharing options...
Xnke Posted July 18, 2013 Share Posted July 18, 2013 The stock downpipe is cast ferrous alloy, yes...but it may weld nicely, it might not. All depends on your welder, your welder's machine, and the material. There was someone on this site selling these flanges pre-cut, but it wouldn't be hard for you to cut one out of plate, using the original gasket as the template. Quote Link to comment Share on other sites More sharing options...
magnum44 Posted June 17, 2014 Share Posted June 17, 2014 How big have you guys been able to bore the stock flange cut off the original pipe? is 3" of a hole doable? Quote Link to comment Share on other sites More sharing options...
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