These are the "LG SUPER PRO" 1 3/4" headers with true competition merge collectors and 3" center section. It has a high quality merge collector that helps the top end power curve and lifts the low end torque. LG SUPER PRO headers add approximately 10 HP to the top over the prior LG Pro headers.
We still suggest 1 3/4" headers for mild applications up to a medium camshaft. On a stock C6Z with LG Super Pro Headers, Cold Air Induction, catback mufflers and a tune, LG reports 510 RWHP 485 RWTQ.
LG SUPER PRO HEADERS include:
-All stainless steel mandrel bent construction using 304 stainless alloy
-Full 3-inch x-pipe included
-True race-style 3-inch merge collectors for better scavenging
-3-inch premium high performance metal matrix catalytic converters
-Race proven design makes more low end torque than any other brand, allowing you to have more of your engine's power on hand at low RPM while still producing fantastic peak horsepower.
-Easy bolt on installation with NO CUTTING or WELDING required
-Great fit and finish with no ground clearance issues
-Note: Long Tube Headers are not CARB certified