Exactly Allan, the whole thing takes a pretty tortuous route tbh, the fact you can make 130bhp with one of those should tell us all the 406 pipe is more than adequate at stage 2.
You won't need an oil cooler if you stay around the 150bhp mark, these engines have way more cooling capacity than is necessary already. Same goes for intercooler pipework, anything more than 2" will just cause more lag.
You won't need an oil cooler if you stay around the 150bhp mark, these engines have way more cooling capacity than is necessary already. Same goes for intercooler pipework, anything more than 2" will just cause more lag.