B Series Swap Big Tube SMSP Style 4-2-1 Header

Recommended for B swap cars ranging from 1.6-2.2L
Excellent ground clearance, tucks higher than the oil pan
Features a true step up exhaust header design
Delivers low to mid range power while maximizing engine compartment space
Made of 18 gauge, 304 SS
One year warranty
Short tube Tri-Y header
True 2.5" collector
CNC machined manifold flanges
Flange is .38" thick
One piece design unlike our competitor
Power Gains: 12-28WHP & 12+ lb of torque gains on a stock B Series with only intake and exhaus