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Old 03-01-2019, 12:49 PM #1
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Rear cat swap debate
Wondering what the effect of a rear cat swap would be? Louder? lower tone? what will it do to hwy drone at speed? throatier in town?

Current setup:
2007 v8
Doug Thorley SS Headers
Magnaflow SS front cats
OEM rear cats and Y-pipe
Gibson SS exhaust with (shop adjusted) side tip.

Thanks for your input.
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Old 03-01-2019, 12:54 PM #2
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I only have an aftermarket mid section/muffler, removed rear resonator, and then deleted the rear cats and raised the crossover section so I could mount skid plates higher.

I immediately noticed more drone in town with the removed cats.
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Old 03-01-2019, 01:15 PM #3
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DT is coming out with a new y-pipe with resonators for about $500
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Old 03-04-2019, 08:26 AM #4
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Quote:
Originally Posted by sumday View Post
DT is coming out with a new y-pipe with resonators for about $500
Has anyone heard of a timeline for this?
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Old 03-04-2019, 11:17 AM #5
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id say maybe end of the month
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Old 03-04-2019, 03:02 PM #6
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I would highly recommend getting rid of the restrictive stock y pipe. Especially since you already have the Doug Thorley headers. In addition to the DT y pipe coming out, take a look at the URD Y pipe if you haven’t done so already. Highly recommend it.

URD MK3 Stainless Exhaust & Y Pipe V8 4.7L
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