I've gone through loads of exhaust topics, and it's fried my brain a bit!
My GT4 has standard downpipes, cats and Y piece. From there on it has a Main Factory Fujitsubo Giken system.
It's a very quiet system, no louder than standard.
I don't want a noisy system, just a little more life to it.
As I understand it, fitting cats, such as Torqens own brand HFC's, can increase volume but not excessively so. Is this correct?
Other issues that seem to crop up in posts that I've read are some MOT failures and fault lights on the dash after fitting HFC's. I don't want to have to deal with stuff like this, so are these normal'ish type issues?
Another thing I'd maybe look to change is the Y piece. I guess swapping that for an aftermarket section also increases its sound , but I've not really seen any feedback on that. Anyone have experience of this too?