Thunder Alley Exhaust

Anyone have one or know someone who does? Are they any good? They are like $350 for a complete system.

Why shortchange yourself? FMF 4.1 Titanium rips!!!!

Thunder Alley uses a stock style header so they dont recommend a full system unless your header is toast. I sold mine and settled on an FMF PowerCore IV with Sparky and quiet core insert has the best performance and easiest to tune the carburation. :applause::bonk::cry:

I found the Thunder Alley nearly impossibe to jet right with the 96 db insert. Wide open I could jet her but it was too loud! :cry::cry::p

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