proflow exhaust collector, merge, 304 stainless steel, slip on, 12in. x 1-3/4in. primary to 3-1/2in.

Stainless merge collectors. These slip-on 4-way units are TIG-welded from 304 stainless steel. They offer less turbulence, more airflow, nice style, and an affordable price. Merge collectors from Proflow are the perfect union for your exhaust to enter into.