[1funryd]

Your only options is just purchasing the tube kits that are still made for specifically 3rd gens.

Tube Only Kits - Honda - 88-91 Honda Prelude - TruBendz Technology

www.trubendz.com

This a bolt up system, but you can have it welded to secure it better and modify the connections like add V-band connections to make it easier to maintain.

Here is my video to show you how we did it:

And then choose whatever muffler you desire.

Also you can add those universal catalytic converter to burn off excess gases to prevent as much of the gas smell if you like or just go straight pipe depending your local situation.

I went with a catalytic converter to reduce unburnt gas and reduce raspy exhaust tone as much as possible.