I have been doing research and wanted to get forum's opinion regarding cat-back exhausts. From what I have gathered all exhausts manufacturers have increased the stock size pipe to 2.25 inch diameter pipe adding their muffler and an exhaust tip to top it off. I was wondering if you have these local Mexican muffler shops just install a 2.25 diameter pipe just from cat to muffler, would that make a difference. Why would these companies charge so much for their product if these local shops can meet their specs at a fraction of the cost.
Your opinion is highly regarded, thanks in advance.
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