Exhaust Components
 

In the uk the largest perforated pipe I can get is 3 inch. Trouble is my exhaust is 4inch. Has anybody got an idea where I can get 4inch perforated tube that can take the heat of a rotary?

First there is no such thing as a perforated exhaust, second perf. stands for perforamnce, third HKS Carbon Ti tip is 120mm. School is for you.

! I said nothing about perforated exhaust, just pipe to make the silencer. Still at a loss where the perf bit comes from but i am sure perforamnce is spelt performance. Then again I could be wrong:)