Free Shipping On Orders Over $100 (U.S. Orders – 48 States) ×

Twisted Steel Tri-Y Long Tube Header & Connection Pipes; Street Series

Cadillac CTS-V 09-15 V8-6.2L (sc)
Part Number: 48-34125-YC

MSRP: $3,016.71


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
Mid-Pipes (Street Version):
•Includes dual, hi-flow, metallic, 400 CPSI, stainless steel catalytic converters
•V-band flanges with included V-band clamps for a secure leak-free seal
Connection Pipes:
•3" Inlet/2.5" Outlet connection pipes mount directly to OE mounting locations
•3" Inlet/3" Outlet connection pipes mount directly to the aFe exhaust (P/N: 49-34063)
•In recent testing the “Street” version produced +23 horsepower and +31 lbs. x ft. of torque on our in house dyno. Tested on a 2009 Cadillac CTS-V V8-6.2L with aFe exhaust P/N: 49-34063)

Tri-Y Design:
Paired opposite firing cylinders with equal, specifically tuned primary lengths maximizes scavenging and increases torque throughout the power band.

High-Flow Cats:
This system includes dual, hi-flow, metallic, 400 cell per square inch, stainless steel catalytic converters for maximum flow and performance.

304 Stainless Steel Laser Cut Header Flanges:
High quality laser cut 304 stainless steel header flanges provides superior sealing at the head surface.

O₂ Sensor:
Includes an additional bung for either a wide-band O₂ gauge or auxiliary instrumentation.

304 Stainless Steel Tubing:
High grade stainless tubing with a uniform brushed finish provides a beautiful look and high resistance to corrosion.

100% TIG-Welded by certified craftsmen for race proven strength and durability. TIG-Welding provides the strongest welds reducing stress cracks.

V-Band Connection:
Machined flanges and USA made stainless v-band clamps provide simple to install leak-free joints.

Factory Mounting Locations:
3"Inlet/2.5"Outlet connection pipes mount directly to OE mounting locations.

Full 3" Systems:
3"Inlet/3"Outlet connection pipes mount directly to the aFe performance Cat-Back P/N: 49-34063 for a full 3" system.

Mandrel Bent Tubing:
This system is constructed of mandrel bent, stainless steel brushed tubing for maximum performance, corrosion resistance and strength eliminating cracking.

Race Disclaimer:
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. To complete the purchase of this item, aFe Power competition acknowledgement/liability release form must be filled out and submitted.

All aFe exhaust systems are engineered and manufactured in our Corona, California facility.


Vehicle Applications

Year Make Model SubModel Engine Fuel
2009-2015Cadillac CTS-V (LSA) Supercharged; Coupe/Sedan/Wagon V8 6.2L Gas
Reviews (0)

Be the first to review this product


Please wait...

Item has been added to your shopping cart

Keep Shopping

View Shopping Cart

Item has been removed from your shopping cart

Keep Shopping

View Shopping Cart