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im looking to swap my current sportex 4inch backbox back to standard, am i best going for the normal clio rt one or wud it be of any benefit to fit one off a valver etc for a small power gain?
also its currently decatted..am i ok to leave it on with a standard back box?
yeah i know about the preformance thing, has anyone got ne pics of a standard valver backbox? also if i get one from GSF will it have the shiny tailpipe or is that just with OE ren ones?