I don’t have an answer but I have a very similar question to this which is hopefully related enough to your question without it appearing I’m thread-jacking!!
So I currently have a cpl racing header that came already fitted when I bought the car. As far as I understand, this has effectively removed the cat and is mated up to an oem exhaust.
While it’s done wonders for the torque my car stinks and I’m nervous Mr plod sat 2 or 3 cars back in traffic might take an interest. I’ve also read horror stories that decat cars have broken insurance rules and in the event of being involved in an accident, insurers could refuse to pay out!
So my question is, if you go custom mid pipe, could you get a sports cat fitted, allowing for most of the additional torque to remain from a freer flowing manifold whilst being back on the right side of the law?!
Just wondering if anyone is running a sports cat (e.g. like the Solid Fabrications offering) with the OEM Honda exhaust behind it on a normally aspirated Type-R (Civic, Accord or Teg)?
Does it make much more noise than standard or much the same?
Cheers
How about a Piper manifold with sports cat? I have no personal experience but t's the manifold I want to get for the legality and sensible noise levels.
That’s mad. So as long as you’re insurance company are making more money out of it they’re happy to insure a car that isn’t roadworthy? :smt017
Heard mixed reviews, the first year goes quite well MOT wise, then the cat becomes less and less effective.
Also needs to be red hot to get through MOT, not based on personal experience but this is what I have seen other piper users.
I would be tempted to get the piper manifold also with the decat section, get it mapped on that, then you can swap the decat for the cat section yearly for the MOT and swap back.
Much easier than swapping the full header
for me it seemed too much money to spend on something that may fail MOT in a few years time as it deteriorates and if the tester faffs around for a while before it gets tested.