I have a 2023 Stingray and would like to pull the trigger on a Magnuson unit. The car is a daily driver, and I am just looking to add some more excitement to an already excellent car.

Generally speaking, does adding a supercharger/turbos adversely impact the resale of the car? I will likely only keep the car for a few more years, when it will be out of warranty anyway.

Would a supercharged C8 have any additional premium in the used market?

Thanks all.

-Mark

 

No, contrary to what others will say on here a TT kit or Magnuson Blower WILL in fact raise the value of your Vette WELL ABOVE what your identical car would sell for given its mileage, condition, specs, etc without it. *However, the AMOUNT it will sell higher for will not fully cover your total costs in performing the mods. At best, you'll recover the value of the Magnuson or tt kit itself minus the labor and tuning costs to install and sort it out. At worst you'll get HALF the total costs of the conversion back in increased sales price. Having said that, many remove and sell the Magnuson Blower in particular independantly to the car to retrieve most of their costs back (being its a "bolt-in" mod for the most part). Hope this helps you.

 

No if I. Looking at buying used I'm thinking you done wore that motor out with boost. I wouldn't be interested

 

Your buyer is going to be someone that wants a bargain power add-on while accepting the risk that you may've driven the heck out of your car. So, smaller buying pool, at a reduced price than what you spent. It's a fun value proposition, not a dollar one.

 

Good answers thus far. I respect all of them.

i am willing to lose some money on the investment, but not sure I am willing to lose all of it.

Thanks for the replies so far…

-Mark

 

I thought I would add that I did consider selling it for a Z06, but I already installed a Corsa exhaust and love the sound that it makes. The ride is tight enough with the Z51 package, and if I track it I will only take it to 90% anyway (because I am too cheap to pay for track insurance). I only visit the track once a year at best.

i think spending 20-25k on a blower is better than paying $50k more for a Z.

-Mark

 

It doesn't impact the value of the car in a negative way as long as it is done by a reputable shop. Your returns however on the mone spent will by 50%. FI cars also have a hard time selling because owners spend a lot of money initially on the setup and try to recoup the money in the sale which drives the sell price really high. If someone is asking $100k for a FI car, no matter how extensive the build was, I'd rather go for a z06 or an eray

 

I sell alot of modded cars and they bring more then stock versions BUT your not going to get list price for the parts.

 

In my experience, a high quality kit with documentation of a high quality build by a reputable installer/tuner will get you more on resale to a private buyer than an equivalent stock car but will likely take longer to sell (fewer potential buyers) and be a more difficult trade in with the exception of 1) Calloway due to ther relationship with GM, and 2) the LPE kit given Ligenfelter's "national" presence. I also agree that you will not get every dollar back and 50% recovery is a fair expectation given my experience with a supercharged C7 and a C8 TT. The C8 TT (at the time) was a more challenging trade even at specialty car dealers; they at least claimed to be more open to the Magnusson based PD kits or Procharger centrifugal kits. I suspect part of that is the brand, part is familiarity with supercharger cars from previous Corvette generations (turbocharging really only went mainstream with the c8), and part is the perceived ease in returning the car to stock. I am actually not sure how easy that last one is with the C8 vs C6/C7 where centrifugal kits could be "bolted" on/off in your driveway.

 

This was my reasoning as well, which is why I had Callaway install their SC on my 2023 Stingray, instead of upgrading to the Z06.

 

I would love to hear more about your experience with the Calloway. If I do another "modified" Corvette, then will go with Calloway. I bought my current C8 Zo6 from a Calloway dealer (CIOCCA). While Calloway has always charged a premium, they seem to offer truly the best of both worlds in terms of bringing a Stingray up to Zo6 or beyond power levels while maintaining full factory warranty and easy trade-in/resale. In the past, I struggled to justify those benefits against the cost difference vs quality tuner options - particularly considering all the headroom a tuner option offers. But now with the price difference between a quality TT or SC kit installed by a top shop and Calloway being nearly a wash and the higher cost/complexity of out of warranty repairs, the Calloway makes a lot more sense. If I blew the trans in my supercharged C7, then could swap it out for a built unit for $3-4K. With the C8, you are looking at $10K+ DCT and it won't be any tougher than the stock unit. And for a streetcar with factory (C8 Zo6, Eray), Calloway, and stage 1 options from tuners all offering ~700HP (600+ RWHRP). the tuner headroom (1000HP+) isn't as usable a benefit.


Having now had a C8 TT car and C8 Zo6 after Centrifugal SC C7 and C7 Zo6, I also believe the C8 is more about a different sort of driving pleasure. It is no longer the "hoon" mobile that previous Vettes could be made into with power upgrades, and more about a precision driving experience. I will always have a special place in my heart for the C7 Zo6. It could dance with exotics but also light up the tires at will and be driven "point and shoot" like a modern-day Shelby Cobra. The LT4 does an amazing impression of a big block engine. I still get my LT4 fix via daily driving a CT5 Blackwing. But again, that car is more capable but a bit less "scary" than my previous LT4 powered CTS-V's. And those cars were less scary than my LSA (550HP) powered 2nd gen CTS-V.

 

Same reasoning here too.

 

I have had zero issues with my Callaway C8. It runs perfectly under all conditions including driving it at high altitude.

 

Thanks for posting, and it's a good read with some good information.

 

I also have had no issues whatsoever except maintaining right foot discipline

The Callaway folks want the car in stock condition so if you have added performance mods, they will probably tell you to remove them. I had a Soler ported throttle body and accelerator pedal controller installed and had to remove the controller and re-install the stock throttle body. (I later reinstalled the pedal controller after I got it back). They also replaced my blue attack air filter with a stock filter. As my car is nearly two years old, I started shopping around for the extended GM warranty and was told by several dealers that GM wouldn't warranty a modified car, despite the fact that when you buy a Callaway corvette new from a dealer, they will sell you the GM extended warranty. I bought my car from Ciocca, who sells Callaway cars and they sold me a GM extended warranty. Even though I purchased the 5-year extended warranty from Callaway, I wanted the GM warranty for all the computers and gizmos on the car that can go bad.

I was a bit concerned about the increased torque on the stock axles and the DCT but I've been assured from multiple sources that the Callaway SC is relatively conservative and not an issue. Makes sense that it wouldn't be a problem or GM wouldn't warranty the drivetrain. Would be nice to have a boost gauge and have the SC cover painted red but these are minor things,

The other issue was insurance. I insured my car when I bought it for replacement value from NCM (actually American Modern insurance), but they refused my request to increase the coverage to include the $30K for the Callaway conversion. However, if you buy a Callaway car new they will underwrite the entire cost. Go figure. So this may be a reason to consider a new Callaway Corvette over a conversion. BTW, I contacted Haggarty to see if they would cover the entire replacement cost but their estimate was twice what I'm paying NCM.

Otherwise, I'm happy with my choice. The SC whine is very cool and the car has more torque at low RPM than the Z06, similar to what the eRay delivers at highway speeds.

 

Hagerty wouldn’t increase my policy value for the SC install as well.