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    4 Piston Big Brake Upgrade from 2019-20

    Got a set of take-off calipers and rotors and just did my test-fit. I can say for certain that the 20" Denali wheels clear all of this without the slightest issue! No wheel spacer, no caliper shaving. There's at least a half-inch clearance between the spoke and the "hump" with the caliper...
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    4 Piston Big Brake Upgrade from 2019-20

    This is majorly helpful!
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    4 Piston Big Brake Upgrade from 2019-20

    maybe a measurement of your current wheels that fit - distance from the brake rotor surface to the inside of the spoke? My '05 Denali has the 7-spoke 20's, which are 8.5" wide and +22 offset. There's a lot of clearance behind these wheels, but is there THAT much? I don't know!
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    4 Piston Big Brake Upgrade from 2019-20

    Resurrecting this to ask a question - has anyone measured how far these calipers "stick out" from the hub face? 65 pages of thread and I couldn't find it. Marked in red from someone else's very good photo of the install. If we knew this distance it would probably help with the "will my...
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    Is there an amp-replacement harness available for Bose?

    Right - the input is on the data line, but the amplified speaker-level signal still has to go out on traditional speaker wiring to the doors - that's what I'm hoping to tap into without cutting or running new wire.
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    Is there an amp-replacement harness available for Bose?

    I have an '05 XL Denali with Y91 / digital amp. I've replaced the head unit with a Pioneer and the PAC RP5GM11 setup. All works fine, but I am planning on replacing the door speakers and using an aftermarket amplifier for the front stage and the console sub. For other cars I've owned, I've...

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