Hi All,
Im am in need of some advice on a custom exhaust system installed today on my 2007 M2 DE Genki 5-speed.
The exhaust specs are as follows:
- 2" mild steel press bent from the cat back
- resinator
- 4"x8.5"x13.5" straight through, glass packed oval muffler
- muffler has an internal 'dog...