If you choose to buy a C8 Corvette, you’re mostly stuck with what you get from the dealership. The near-impenetrable ECU has rendered it impossible to tune thus far, so they main ways to boost performance are from handling modifications. But if you’re dead set on getting more power and can’t wait for the upcoming Z06, an exhaust is about all you can do. It seems Hennessey is finally understanding that, because after a bogus attempt at a twin-turbo mod, they’ve realized the only engine performance mod they can sell is their new C8 Corvette exhaust.
Hennessey’s C8 exhaust system brings a number of improvements to the vehicle. First, it’s totally ECU compatible, but boosts output by 21 hp and 19 lb-ft of torque. These numbers have been dyno tested by Hennessey, too, which you can see in the video below.
As you can hear, the exhaust also greatly enhances the noise of the C8 Corvette Stingray. Some have criticized the new mid-engined ‘Vette for being a bit tame in the noise department, and this modification certainly fixes that. The exhaust also drops 10 pounds over the standard OEM system. With the mild power boost and weight loss, there should be some noticeable improvements to the speed, even if the louder soundtrack makes that a bit placebo.
The system is hand made from all T304 high quality stainless steel, and is “lightly polished.” Hennessey says this means you get some shine, but it’s not full chrome. Finally, the exhaust is a direct bolt on.
While Hennessey’s C8 Corvette exhaust is a great upgrade, its pricing commands a premium. Hennessey will only make 1000 units for 2020 and 2021, and they’re priced at $3,495. That being said, the first 100 units are priced lower, at $2,995.
But still, that price is especially unacceptable when you can get a set of Kooks headers for the C8 for $1,495. Coupled with their sports cats ($1,614) the Kooks system boosts power by similar amounts but actually produces more torque. Of course, it sounds great, too.