<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr>Originally posted by belacyrf:
2" Diameter? I don't know what the stock diameter is, but I have to believe that a 2" is going to restrict the performance gains a bit.<hr></blockquote>
The stock size is 1 7/8". This is a quote from the magnaflow website: "It is better to use a smaller diameter mandrel bent pipe than a larger crush bent pipe. Remember that maintaining velocity is just as important as reducing backpressure.
PIPE DIAMETER GUIDELINES
Some basic exhaust pipe diameter guidelines for non-turbo cars are as follows:
1,500cc-2,000cc engines : 2-inch
2,100cc-2,500cc engines : 2.25-inch
2,600cc-3,000cc engines : 2.5-inch"
Heres the URL to the full article:
http://www.magnaflow.com/05magazine/05sportc.htm