S2K-Phil

A Honda part @ £1416.624 is, of course, not an option.

Shortsoundman and others have Berk High-Flow catalytic converters and, at about £12000 cheaper, seem a bargain. Searching the internet reveals several others but as they are an unknown Berk seems the obvious choice.

Question - There are 2 sizes: 63mm or 70mm. Will both sizes fit and if so, which would be the best? Tarmac sells both, so free postage and an S2000 discount.

mikefifth

If you are stock I would say 63mm

PhilipGB

On its own the 70mm would probably lose some performance. Not needed unless the entire exhaust, intake and engine management are being upgraded.

S2K-Phil

Thanks

I don't plan (at the moment) to change any other aspect of the system, so 63mm it will be.

thanks again

Phil

S2K-Phil

The Buzzy Cat has now gone. Tarmacsportz sent the High-Flow direct to TGM for me. S2K discount and free postage to Tarmacsportz and to Tom's while you wait fitting.

Saving on the Honda quote = £1217.18

Sounds better than the original and feels like improved performance - my imagination I am sure.

Next question - when the car is due for its next MOT, is there anything that can be done to improve the chances of passing. I have seen the comment that it 'scraped through' mentioned.

BenRNBP

Sounds like a good experience all round - makes it a lot easier to part with the cash if you get good service.

For passing the MOT, the basics tend to work well; clean air filter, clean IACV, fill up with good fuel, clean+working PCV, breather hoses in good condition, get it nice and hot before you drop it off, maybe run some injector cleaner (my fav is Redline SI-1) in the tank before but I tend to only do that before an oil change.

And I think going from a partially blocked cat to a new standard one you'd notice the difference, so from blocked cat to high flow you are bound to notice an improvement

S2K-Phil

Thanks fro the advice.
placebo or not, I am sure performance improvement has been made; the wife frowns more.