petermj

I do not think any really increase the value and surve mainly for enjoyment of the owner but what are the mods that turn majority of buyers away? I do not consider salvage title a mod

DSOMC6

A hitch for a trailer.
A 3" lift kit.
Repainted to a nice shade of Barbie pink.

KABAL182

I think the items , that are NOT deal breakers are exhaust , and rims. After that most people want a car as close to stock as possible.

boraxman

I would shy away from anything not stock. I want to do my own mods.

ExRedRacer

Well, when I was searching for a previously-owned Vette, if I saw any engine mods listed, I knew that it was not for me. Couldn't shake the feeling that with all those mods, either it had been beaten to death or they'd gone wrong and somebody was trying to unload it on an unsuspecting buyer.

I know, I know, probably most of the guys who mod their engines are careful drivers and don't beat the cars to death. But still.....ya never know for sure.

Ended up with a like-new coupe on which the owner had installed the Corsa catback exhaust system w/x-pipe. I had no problem with this because that's the same mod I'd had on my C5.

Mach2

boraxman, what if the private seller has all the paperwork for the parts, and labor, of all the mod's done to his car and the parts were bought from known CF vendors and the labor was done by a reputable shop? Or would you not look at a private seller Corvette unless it was stock??

designerRob

I'd say most mods don't necessarily decrease value but I would say that they may narrow the market for resale.

And I'd also say that a quality set of wheels can increase the value somewhat. There's no denying a nice set of forged wheels.

Gearhead Jim

Anything that might void the warranty tends to decrease the value of the car, by anything from 1% to 100% depending on the prospective buyer.

boraxman

I guess it would depend on how it was priced, I sure wouldnt pay any extra and if it wasnt to my taste I definitely would pass.

I prefer a car as close to stock as possible. I was lucky finding my former 06 GTO and my current Vette without one thing done to them.

DallasZ06*

As long as it's not something that would void a warranty, I consider it a plus (exhaust, intake, etc). Any engine or tuning I run.

saplumr

If your servicing dealer chooses to get "picky" any aftermarket intake "could" void the warranty.

RJRSW

Mods to the body of the car, the motor and tunes that kill the warranty are the top resale killers for most buyers.

Any of the above and I will not buy the car no matter how cheap they will sell it. I have bought around 25 vettes over the years and other than one C5 that had B&B Route 66 mufflers and an after market stereo head unit they have all been without exception bone stock.

Simple things like air intake filters, wheels, simple exhaust, simple audio and the like that can be reversed very simply are not bad for resale as long as the original items are included with the car sale. If they are not I deduct the cost of buying the necessary items and the labor to install them.

rcallen484

I would add tinted windows to that list but not sure I agree with exhaust. After market exhaust could substantially reduce pool of potential buyers.

sportcruiser

Any mod I don't like! Seriously, mods are so personal, the more it has the less likely I will want the car.

petermj

If the car becomes much harder to sell, isn't this effectively a decrease in value? I personally think that anything that can be easily removed before sale and then resold, is a good mod. I am not sure how supercharging/turbocharging affect the value, if the car is under warranty and mod voids the warranty, I think the car value goes down... Even rims, if lower profile tires are used, may create problems.

Bobbyosto

Supercharger

laconiajack

If it doesn't effect the engine (intake, headers, and any so-called "tunes" etc.) drive line, or suspension (like lowering) I don't think it decreases car value much, unless of course it is in poor taste/illegal like blackening out lights and windows, look at me wheels, aftermarket exhausts, or other ill-advised Joe Six-pck mods.

Turbo6TA

I would have to agree that the pink paint job would make the Corvette very hard to sell.

But, a supercharger or a turbo kit would be almost as tough to sell ... As much as we all like high HP, how many of us are wiling to buy an expensive late model C6 with an aftermarket supercharger when we don't even know who the last owner was, or the hell the car had been through by the previous owner ... Just something to think about when you get the urge to pluck down $7,000 plus for a supercharger kit.

petermj

widebody conversions? ground effects?

Just Buy It

IMHO, I would not MOD the car if you are concerned about the resale value. Is anyone really looking for a moded out C6? If you went to look for a C6 and it had all kinds of crazy mods you would walk away. If you want to mod it for yourself then fine and enjoy it. You will never get any mod money back on a resale of any car. I see guys with super charged C6's pumping 700 HP and ask why? If you want to drag race it fine. If you want to lose the 7K you dumped in to it when you try to sell it thats fine too. Its not a Corvette thing. Its a moded car thing. We all know you never get your money back from a mod.