+- 306oc - Peugeot 306 Owners Club & Forum (https://www.306oc.co.uk/forum)
+-- Forum: Engines (https://www.306oc.co.uk/forum/forumdisplay.php?fid=16)
+--- Forum: XU Petrol Engines (https://www.306oc.co.uk/forum/forumdisplay.php?fid=17)
+--- Thread: Cat swap (/showthread.php?tid=17870)
Cat swap - S160six - 07-10-2013
Have seen some videos of people swapping their BMW cats out for a cherry bomb...I'm definitely gonna decat it, and I want to either swap the cat for a bomb or the middle silencer on my magnex system because the middle box is knackerd. I want to keep the back box, so the question is decat/cherry bomb straight through to the back box, or regular decat to a cherry middle box and magnex rear, anyone done this before? Is welding a bomb where the cat was too much effort? obviously it will be easier to weld into centre, just wondered about noise difference, I want as much rasp as possible, thanks ...essay over
RE: Cat swap - cully - 07-10-2013
NO CAT is an MOT failure to any law abiding MOT inspector
RE: Cat swap - S160six - 07-10-2013
its just had 12 months plus I have a friendly tester
really not fussed about legality
RE: Cat swap - MCH - 07-10-2013
(07-10-2013, 05:39 AM)cully Wrote: NO CAT is an MOT failure to any law abiding MOT inspector
Quite a few places will pass the car if it still passes emissions but then that is a big IF with a lot of cars as it will be well over...
RE: Cat swap - tenwierdufos - 07-10-2013
Dont think i have ever seen a catless car that could meet a cat emissions test! Well not petrol ones. LPG will do! But thats defeats the point as they only have to meet 3.5% co when converted anyway!
I think a lot of people tend to have "bolt in" decat sections made up or bought, so they can easily swap between come MOT day.
RE: Cat swap - MCH - 07-10-2013
My old hdi passed with a decat and when I had a genuine standard exhaust on my gti6 with just a de-cat it passed (just, was on the limit)
RE: Cat swap - tenwierdufos - 07-10-2013
Well, your Diesel HDI wont be tested on the cat thats why, it only has a smoke test to pass
Hence why i said petrol cars! Haha, you must have one clean GTI6
RE: Cat swap - S160six - 07-10-2013
Has anyone tried this setup then..?
RE: Cat swap - tenwierdufos - 08-10-2013
(07-10-2013, 11:05 PM)S160six Wrote: Has anyone tried this setup then..?
Used straight pipe to replace a cat before but not used a cherry bomb in the place of a cat.