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Chinese GT45 Downpipe size

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Old Apr 23, 2018 | 06:07 PM
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Nasty02Tahoe's Avatar
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Default Chinese GT45 Downpipe size

guys I am building a turbo set up for my Tahoe and I have a Chinese GT45 but not sure what size downpipe to run 3, 3.5, or 4inch all three will fit the vband. Any suggestions would be appreciated!
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Old Apr 23, 2018 | 06:35 PM
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What can you fit down past the frame?

Or are you doing like a dump/fender exit?
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Old Apr 23, 2018 | 06:37 PM
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Fender exit
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Old Apr 24, 2018 | 10:01 AM
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Performance wise, it's not going to make any difference fender dumping that turbo. But It's a 4" v-band outlet so might as well just do a 4" fender dump and call it a day. But you better have a big WG or 2 with that setup or it's not going to control boost very well.
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Old Apr 24, 2018 | 10:08 AM
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I went with 3.5 stainless and I am running a 50mm WG
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Old Apr 26, 2018 | 01:15 PM
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I'm building a twin Chinese GT45 setup, and I have 3.5 exhaust. I run two 45mm gates
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Old Apr 26, 2018 | 01:19 PM
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Yep I went with 3.5 since it’s fender dumped and a 50mm gate
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