BRAND NEW in box. 2.5" pipe all the way through. Polished Stainless. I have one of these systems on my 06' Type S. It is NOT loud. It is very deep and throaty without droning inside the cabin.
Presently $349 on the Yonaka site. First $250.00 (Firm) takes it. Prefer local P/U.
ALSO: BRAND NEW...
I have a Mishimoto silicone induction hose for sale. Used less than 5,000 miles. Comes with hose clamps, 2 large + 2 small. This is designed to work with the factory air box. Fits on '06-'11 Si
$50 shipped to CONUS
Link to item page on k-series part