MBFinlay Posted April 29, 2020 Share Posted April 29, 2020 Anyone here familiar with gravity exhaust products from ebay? Good quality or cheap chinese rip of? Found 4-1 manifold with good price. Cant find toyosport manifolds for mb6 anymore. Im looking for that Subaru rumbling sound some get with 4-1 manifolds in their mb6. Currently I get mostly droning low sounds. Need some Grunt to it without rice. Which One is better for b18c4 overall. 4-1 or 4-2-1 figuration? Considering the long gearing of s9b as well... Quote Link to comment Share on other sites More sharing options...
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