The factory has to follow strict emissions rules etc. GM can't approve the C7 corvettes to be made with high flow cats. There are no rules to be adhered to in the aftermarket. Some aftermarket exhaust companies for example can sell a system with high flow cats or cat-delete which is meant for track use. They're not going to monitor your driving after you install it. Yes, you can get a ticket if your car is too loud but that's quite rare. When more mods are added in addition to the exhaust, like headers, supercharger, head & cam, etc then the performance gained from the exhaust is more. I agree that spending $2000 for an exhaust by itself is a total waste of money unless you're trying to change the look with different tips like the Callaway system.
Exaust Upgrades
No offense to any manufacture or owner that wants to "upgrade" the $1,200 exhaust upgrade on the C7. Sounds different, sounds better than factory, I'll give that. Always wondered why an after market manufacture gets more hp torque than all of the General's engineers put together. I granted can see the dyno results posted in different forums, Corvette, BMW, Mustang or whom ever. Even more impressive to me has always been the butt dyno that feels a huge difference "as soon as I drove it". I've yet to see certified 1/4 mile times pre and post exhaust change.. 0-60 mph pre and post change. I've yet to see certified mpg prior and mpg afterwards.
Same concerns for air breathers, plugs or wires.
Anybody provide these certs? If I've offended anyone, apologize, but not sorry at this point.
Same concerns for air breathers, plugs or wires.
Anybody provide these certs? If I've offended anyone, apologize, but not sorry at this point.
1 - 1 of 5 Posts
1 - 1 of 5 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Stingray Corvette Forum
We’re a forum community dedicated the Corvette Stingray. Come join the discussion on performance modifications, accessories, purchasing, maintenance and more!
Full Forum Listing
Recommended Communities
