Go to exhaust shop, pick muffler, let them do it.
My 240sx got somekinda in-stock GMC muffler, for 3"
My GMC got somekinda in-stock Ford muffler, for dual 2.5" in, single 3" out
all I asked them for:
1-cheapest
2-inlet
3-outlet
4-cheapest
240sx done for $150
GMC done for $100
My 240sx got somekinda in-stock GMC muffler, for 3"
My GMC got somekinda in-stock Ford muffler, for dual 2.5" in, single 3" out
all I asked them for:
1-cheapest
2-inlet
3-outlet
4-cheapest
240sx done for $150
GMC done for $100