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66Lover · Sep 22nd, 2019, 08:32

Hi again,

I looked into this a few years ago but want to check again.

My exhaust is ropey and blowing worse each week from several places. Ideally I'd like to replace it with something a bit better flowing, see if we can realease a few extra bhp.
Simons and Jetex both seem popular 'Sports' systems.

However, my car being 1991 has a CAT. B230f. Many of these sports systems are for non cat earlier cars. A few years ago when i investigated it sounded like legislstion dictated that if a car was built before X month in 92 (or something or other) then the cat could be removed. Obviously i'd then get a boss welded onto the new exhaust for the 02 sensor.

Anybody know what the current regs say?

Thanks

Sep 22nd, 2019, 08:32	#1
66Lover Member Last Online: Sep 5th, 2020 15:16 Join Date: Jun 2006 Location: Cheshire	CAT removal Hi again, I looked into this a few years ago but want to check again. My exhaust is ropey and blowing worse each week from several places. Ideally I'd like to replace it with something a bit better flowing, see if we can realease a few extra bhp. Simons and Jetex both seem popular 'Sports' systems. However, my car being 1991 has a CAT. B230f. Many of these sports systems are for non cat earlier cars. A few years ago when i investigated it sounded like legislstion dictated that if a car was built before X month in 92 (or something or other) then the cat could be removed. Obviously i'd then get a boss welded onto the new exhaust for the 02 sensor. Anybody know what the current regs say? Thanks