I bought my Mach 1 used from a dealer, I recently put in the MAC pro chamber in, and while I was underneath I saw the mufflers said Flowmaster on them, I thought it was odd since the dealer said it was completely stock, oh well, just a gift for me I guess. The part number on them is 42443 which I later found out is the standard 40 series, which is great cause it's the series I wanted to get regardless. But the only bummer, they're 2.25 inch, and I wanted 2.5 inch. So now I have a few questions...
1) does that extra .25 inch really make a major difference, and where/how exactly
2) if it makes a big enough difference to warrant going with the 2.5 inch, can I cut the inlet/outlet and weld in 2.5 inch
3) if 2 is not possible, would a shop, or anyone (ebay*) be willing to purchase them or trade me for 2.5 inch...
Lots of thanks in advance...
1) does that extra .25 inch really make a major difference, and where/how exactly
2) if it makes a big enough difference to warrant going with the 2.5 inch, can I cut the inlet/outlet and weld in 2.5 inch
3) if 2 is not possible, would a shop, or anyone (ebay*) be willing to purchase them or trade me for 2.5 inch...
Lots of thanks in advance...