Correct Muffler size

[RBD402]

Hi guys, can somebody help me please.. im confused if ill use the 170mm shell 120mm tip and 75mm inlet size of HKS Hi-Power Muffler.
or just the 130mm shell 96mm tip and 60mm inlet size.. which is the best for our MP3 without turbo.should i get the biggest size? my current set up is, Cold Air Intake,PnP,jspec camshaft,4-1 long runners headers,thunder resonator and midpipe.. please help.. thanks!

 

[neilv]

So that's a 3 and a 2.4" inlet? 2.4 for N/A and low boost turbo and 3" for high boost turbo is probably ideal for having no restrictions and getting the max power.

So go for the 60mm inlet. The 75mm may make you lose power.

 

[KrayzieFox]

So that's a 3 and a 2.4" inlet? 2.4 for N/A and low boost turbo and 3" for high boost turbo is probably ideal for having no restrictions and getting the max power.

So go for the 60mm inlet. The 75mm may make you lose power.

What he said.