no, all a gasket is gonna do is prevent exhaust from leaking out the turbine outlet past the downpipe, making an exhaust leak. whats happening to you is that the exhaust is basically bypassing the turbine wheel and taking the easiest route out...............through the open hole, and into the downpipe. its basically acting as if your WG was 100% open all the time. If im understanding what you're describing to be the case at least.
If this is really how things are, you really need to get a better understanding of exactly how things work before you put them on your car, or its gonna live a very short, hard life.
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90 S13:............fitter, happier, more productive.
04 Yamaha R1: 210rwhp on gas/161rwhp on motor
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