Ideas on exhaust?

[mariojr]

Is there an easier way to attach exhaust to headers? Or do I just build a whole new one out of styrene or something? Just curious the ones I put together look bad

[cobraman]

Photo of what you did please.

[mariojr]

Not near my house but it doesn’t flow or it’s too short. How would I smooth it out with putty when it goes together if there’s paint on it?