IM thinking about using a standard bike exhaust on my car. Its a 1.6 what bike exhaust should i be looking at using? 1000cc?

Thanks

Carbon Yamaha R1 can should do the trick. If you are pre-SVA you might need a cat, depending on engine age.

my engines 91, i believe its post 95 that need cats?

can't go far wrong with a carbon R1

Get the biggest one you can find! I had this on my 2l pinto its about 5" dia and was VERY LOUD, it didn't stay on for long even after repacking it didn't make much difference.
Rescued attachment can.jpg

Do carbon ones come standard? I just want something cheap that will make it sound good and not be too restrctive.

Plus it wont be seen as itll be hidden in the bodywork so not bother about how it looks

i think the carbon ones were standard up to a time (1998 maybe?) when they became titanium.

I got a carbon one off ebay, buy it now, for £25 plus about £12 posting. its clearly 2nd hand a few scuffs here and there, but looks good

the carbon ones also have the benefit of the outside running a lot cooler than a metal can, cool enough to hold even after a long run. I have one on the falcon and it’s actually too quite for my liking despite being marked (for a bike) not for road use