just fitted scoobysport bb but want more power is it best to do the downpipe, the centre or do you realy need to do both

 

DP is 95% of the change. And leaving the mid in keeps the noise down a little, and may (small chance, but there is one!) of still passing an MOT.

 

I have a bpm td-38 downpipe for sale.

It is a catless downpipe which replaces the standard
downpipe. Has a 3" bore, twin dump design, and is hpc coated mild steel.

It will be much quieter (about 8db) lower than other downpipes on the market.

Drop me an email if interested.