Hi, i have just had a gtb2260 conversion. My exhaust comprises of a 3 inch downpipe to a 3 inch piper 0 silencer system. This wasnt too bad on my hybrid pd150 turbo but now it is too loud. Any suggestion? Would having a silencer welded in cause any problems with the mapping? Cheers

Id say just put one silencer in as a backbox or somthing. Should help keep the noise down unless your flooring it and help reduce exhaust soot.

Power wise... I don't think it would cause any problems but others will let us know!