View Full Version : Anyone have a Catalytic Converter Solution for Twin Side Pipes?
petepetrolhead
10-01-2025, 03:25 PM
Greetings from over the pond! I'm building a rhd Gen3 coupe. Over here we have to meet emissions levels that are impossible without a catalytic converter. I very much want to keep the twin side pipes, so I guess any solution must be under the hood. I have the standard FFR long tube headers, but I'm not sure there's any way to fit even the shortest cat using those. Can anyone suggest a header + cat solution that will work with twin side pipes (maybe they will need modifying at the collector end buts that's OK). Thanks for your help!
JohnK
10-01-2025, 05:05 PM
A long time ago GP Headers made headers with built-in catalytic converters, but I haven't seen those in a while. Your best bet is to contact Georgie at Gas-N. I'm confident that he can custom-make you a set of headers with cats.
petepetrolhead
10-02-2025, 02:58 AM
A long time ago GP Headers made headers with built-in catalytic converters, but I haven't seen those in a while. Your best bet is to contact Georgie at Gas-N. I'm confident that he can custom-make you a set of headers with cats.
Many thanks John - I'll do that :-)
michael everson
10-02-2025, 04:26 AM
I have a set of catted Coyote headers that were purchased through Factory five. They have the traditional 4 bolt flange, but early Coupe headers had the same flange. Let me know if thats something that might work for you.
Mike
petepetrolhead
10-02-2025, 03:02 PM
I have a set of catted Coyote headers that were purchased through Factory five. They have the traditional 4 bolt flange, but early Coupe headers had the same flange. Let me know if thats something that might work for you.
Mike
Many thanks for your reply Mike. I'm running a 347 SBF, so I don't think Coyote headers would work. However it hadn't occurred to me to ask the factory (doh!) so I'll get on and do that :-)