I'm not to sure.....I had bought these to put on my car but than someone local gave a good deal on some corsa extreme so I bought those and installed them
I had some Corsa Extreme catback and corsa extreme double x.....yes like they have said.....its loud.....I recently swapped the x pipe to the Borla Switchfire....it's still loud but to me it has a better loud tone....
**Will provide my username and date picture later****
I have these Magnaflow Competition Mufflers for sale.
i had bought them with intention of putting them on my gt350 but i found a full corsa system so these are just there......
im asking 450 shipped OBO
...
Here you go.....i should be getting them tomorrow should be able to get back on here to let you their quality
https://shop.2mfabrication.com/product/2015-2020-shelby-gt350-ultra-premium-long-tube-headers