At the moment i have an ashley decat downpipe on my 94 wrx and it doesnt have the bellmouth entry only the normal circle like on the original cat, would i benefit from a bellmouth downpipe in power or noise etc????

 

yes spools quicker with a bellmouth..

Simon

 

yes mate i looked at the ashley one when i was after a downpipe you could modify that one or look on ebay for a better one i got a hayward and scott one for £80 quid and its definetly better