Custom Exhaust opinions

[Erin]

Hi all

I am getting a custom exhaust on my GT next week - we have very limited products available for mods in Australia

Which do you recommend out of the following and why??

Cat-back with both sets of cats left

Remove first set of cats and go cat-back with only one set left

Straight through - remove both sets of cats

 

[oddball]

Modifying the cats is subject to local laws on emissions controls and your usage of the vehicle.

Removing or modifying the primary cats can cause overboost errors. There's several posts on here about it.

 

[Erin]

Modifying the cats is subject to local laws on emissions controls and your usage of the vehicle.

Removing or modifying the primary cats can cause overboost errors. There's several posts on here about it.

Thank you - I thought this may be the case