Charlie Nelson

ok so i need to put a muffler on my 1986 4runner. i need something quiet and the Walker Soundfit looks good. the only issue is the ends of the muffler is 1.75in diameter, but id like to use a bigger pipe for better flow. is it ok to go from the stock header/manifold to a 2in pipe, to a short pipe that goes from a 2in on one end down to a 1.75, then the muffler, then back up to a 2.25in pipe? if i cant do this then what is a muffler you suggest that can take a 2in diameter pipe thats quiet that still has just a little roar in it? i wont be running cats.

skypilot

iTrader: (1)

Going smaller anywhere along the length defeats what you are trying to do. My trucks all sport 1.75 to 2.0 pipe front to back. Makes my life easy. I do not think the flow improvement is worth the hassle of custom pipe jobs for how very little full throttle driving I do. Also noise is a concern for me, the houses are too close. I use Walker or Rockauto factory muffler pipe and use an 8" glass pack in place of the cat. Some MIG & sawzall work and no more for years, till rust kills it. Walker seems to be thicker stuff.