Large flange or small flange on a singleport?

[dubbedup67]

As the title suggests
I'm looking to but a single quiet pack exhaust but I don't know what size flange my engine needs?? I'm guessing small flange but I'm not sure.:/

I'm running a 1600 single port.

Cheers
Matt

 

[mr fish]

small flange will be fine for any stock engine. in fact you'll fine it quite hard to buy a large flange system these days unless its a fully merged system.