C6 Corvette ZR1 American Racing Headers 1-7/8 inch (2009-2013)

C6 Corvette ZR1 American Racing Headers 1-7/8" Long Tube Header System (2009–2013)

For 2009–2013 C6 Corvette ZR1 owners, the American Racing Headers (ARH) 1-7/8" Long Tube Header System upgrades the complete exhaust flow path from the factory manifolds to the rear axle connection point, then mates to your axle-back. It’s built to improve exhaust efficiency on the supercharged LS9, sharpen throttle response, and deliver a harder-edged tone under load.

ARH ZR1 1-7/8" Long Tube System – Product Details

• Long tube header system engineered specifically for the C6 Corvette ZR1 (LS9)
• 1-7/8" primaries feeding 3.00" collectors
• 3" x 3" X-pipe midsection designed to connect at the rear axle point
• Merge collectors with welded scavenger spikes for strong scavenging and clean transition
• Built from premium stainless components with 3/8" laser-cut flanges for a warp-free seal
• Assembles with Grade 8 hardware and stainless band clamps where applicable
• Made in the USA and backed by a lifetime warranty

Why This Setup Works on the LS9 ZR1

• Flow efficiency that supports higher load and higher RPM pulls
• Crisper throttle response from improved exhaust evacuation
• More aggressive tone under boost without changing your axle-back choice
• Complete system approach: headers + X-pipe section designed to work together

Choose Your Configuration

• With Cats (300-cell): ZR1-09178300LSWC (includes severe-duty 300 cell catalytic converters)
• No Cats (Catless): ZR1-09178300LSNC

What Customers Say

“Noticeably quicker response and a nastier pull up top. Fitment was excellent and the sound under boost is exactly what a ZR1 should have.”

Technical Specifications

• Application: 2009–2013 C6 Corvette ZR1 (LS9 6.2L supercharged)
• Header style: Long tube, one-piece
• Primary tube diameter: 1-7/8"
• Collector diameter: 3.00"
• X-pipe included: Yes (3" midsection)
• Flange thickness: 3/8"
• Collector design: Merge collectors with scavenger spikes
• Cats (catted option): Severe-duty 300 cell

What’s Included

• Long tube headers (left/right)
• X-pipe midsection (catted or catless, depending on selection)
• Installation hardware + gaskets
• Stainless band clamps (where applicable)
• O2 extension harnesses (required to complete the install)

Installation Overview
This is a direct-fit long tube header system for the C6 ZR1 chassis. Installation is best handled by an experienced shop due to access, fastener heat cycling, and routing around tight underhood areas. An ECU calibration is recommended after installation for best drivability and results.

Corvette Compatibility

• Fits: 2009, 2010, 2011, 2012, 2013 C6 Corvette ZR1 (LS9)

Emissions & Warranty

• Use classification varies by location and configuration; confirm local requirements before purchase
• Lifetime warranty

Custom Corvette Accessories is enthusiast-run, focused on correct fitment, fast shipping, and real-world Corvette ownership support. If you want a true long tube header system that fits the C6 ZR1 correctly and upgrades the full flow path to the axle-back connection point, this ARH 1-7/8" system is a proven choice.