Hyperflow Catted Down Pipe WRX/STI

Description

The Hyperflow Exhaust down pipe with high flow catalytic converter uses a massive cast 304 Stainless Steel Bellmouth that tapers to 3.0″ piping where it connects to the cat-pipe. This two-piece design allows you to remove the cat-pipe and add in a catless racepipe without replacing the entire down-pipe assembly.

• 3.5 inch diameter 304 Stainless Steel pipe tapering smoothly to 3.0 inch
• Spare wideband oxygen sensor bung included
• Modified pipe path to provide more ground clearance for lowered cars than previous design
• TIG welded and polished to a show quality finish