aFe Twisted Steel Tri-Y Headers Features:
•1-7/8" primary tubing which merge to 2-1/8" secondary tubes into a 3" collector
•4-2-1 Tri-Y designed headers
•3/8" thick, 304 stainless steel head flanges
•Optimized tube lengths improve flow and performance
•100% hand TIG-welded construction ensures optimal strength and durability
•Incorporates a second bung for either a wide-band O₂ gauge or auxiliary instrumentation
•Gasket set included
X-Pipe: (Street Version):
•Includes dual, hi-flow, metallic, 200 CPSI, stainless steel catalytic converters
•V-band flanges with included V-band clamps for a secure leak-free seal
•Incorporates an X-Pipe to balance and evenly distribute exhaust pulses traveling through the exhaust system, minimizing exhaust drone
•This is a direct bolt on system when used with aFe Axle-Back P/N: 49-34068. Also fits stock exhaust system with minor cutting
Testing:
•In recent testing the "Street" version produced +24 horsepower and +27 lbs. x ft. of torque on our in house dyno. (Tested on a 2016 Chevrolet Camaro V8-6.2L w/aFe axle-back P/N: 49-34068) | 
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