
Do y'all regret modding your c6?
So drive a c6 grand sport automatic with 27000 miles and absolutely love her I think she's the most beautiful car and enjoy driving her as my daily. I'm considering doing a ton of mods mainly for reliability but also for a power boost, this is the list of stuff the shop would be doing it will cost me 16k with labor. My fear is that I know it won't add 16k in value to the car and I have trouble throwing away so much money even though I know I will love it. Has anyone done something similar and can you share how it has been for you? Or have any other recommendations? I bought it for 36k so I will be in it for 52k which seems insane but maybe I'm just being dramatic. She is also mechanically perfect and I've never had a single issue with her in the 6k miles I have done sense buying. Any advice is appreciated here is a list of all the mods/maintenance that the shop would be doing.
Kooks long-tube headers
High-flow cats / X-pipe
QTP cutouts / mid-pipe cutouts, if that’s what you meant by “mid pipe ports”
Mild camshaft
DeWitts radiator
Engine / cam support
SFI harmonic balancer — ATI
ARP balancer bolt
Upgraded timing chain
Oil pump upgrade or fresh OEM/Melling pump
Valve stem seals while springs are being changed
Rocker trunnion upgrade
Correct pushrod length verification
PAC valve springs matched to the cam
Hardened pushrods
Front main seal
Timing cover gasket
Water pump gaskets or full water pump replacement
Cooling / drivetrain protection
Auxiliary transmission cooler for the 6L80E
6L80E pan-drop/filter service with Dexron VI
Correct DeWitts automatic-trans radiator fittings
Fresh coolant / coolant flush
Thermostat replacement,
Radiator hoses inspection or replacement
Heat protection
Starter heat shield / thermal blanket
Plug-wire heat sleeves or boot protection
Heat shielding around QTP wiring, tunnel, brake lines, trans lines, and nearby harnesses
Intake / PCV / tune
Halltech Killer Bee intake, if you are keeping the intake in the build
Closed-loop catch can, Mighty Mouse
Conservative dyno tune
Earlier fan settings
Safe air/fuel and timing
Keep reasonable trans torque management
Keep cats/rear O2 readiness as inspection-friendly as possible
Exhaust / cutout details
QTP low-profile oval cutouts
Wireless remote/controller
Custom welding into the X-pipe
Placement focused on ground clearance, heat, and serviceability