Thats another thing.....I cant tell if its the hissing of the exhaust or a leak. LOL. I know that there is a slight leak...got to find a better gasket to seal it...but...maybe most of it is from the exhaust. I think that the exhaust change just amplified that hissing sound.
How are the F.I.L.T.H. ?? Heard and read good reviews on them. Technically I got the same thing with GTM resonated TPs and a full cat back system mix of Sunline and Amuse. The sounds between the two are VERY different though.
I hear a G37 with a FI exhaust and that one is low and pretty loud too.
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