SRM Corvette C8 High-Flow Catalytic Converters (300-Cell) 

The factory C8 exhaust system is a masterpiece of engineering, but it's held back by heavy, restrictive ceramic catalytic converters. Our 300-Cell High-Flow Catalytic Converters are designed to let your mid-engine beast breathe, delivering a deeper, more exotic exhaust note and measurable gains in horsepower and torque—all without the "gas station smell" of cat-less pipes.

HIGHLIGHTS

Key Features

• Optimal Flow Dynamics: The 300-cell metallic substrate offers a significant reduction in backpressure compared to the dense factory 600-cell units.

• T304 Stainless Steel Construction: Built to withstand the extreme heat of the C8’s engine bay. Precision TIG-welded for maximum strength and a lifetime of performance.

• The "Perfect" Sound: Expect a crisper, more mechanical roar at wide-open throttle, while maintaining a refined, drone-free cabin experience during highway cruising.

• Direct Bolt-On Fitment: Designed as a 1:1 replacement for the OEM converters. Reuses factory mounting points and O2 sensor locations.

• Heat Management: Integrated heat shielding ensures your engine bay temperatures stay within safe operating limits.

Why 300-Cell?

While many competitors use 200-cell cores that often trigger "Catalyst Efficiency" codes, our 300-cell substrate provides the ideal surface area for exhaust scrubbing. This maximizes your chances of maintaining a CEL-free dash while still achieving the high-velocity airflow required for performance driving. 

 

The "Full Bolt-On" Combo: Why Pair Both?

While either part is a great upgrade, running our 300-Cell High-Flow Cats with the Muffler Delete Catback creates the ultimate performance synergy:

1. The "Stage 2" Power Jump: Combining these unlocks the most restricted areas of the LT2 engine. You’re looking at an estimated gain of 20–25 WHP and a massive increase in mid-range torque.

2. No Drone, All Tone: The 300-cell cats act as a natural resonator. While a "cat-less" muffler delete can sound raspy or "tinny," the 300-cell substrate keeps the note deep, crisp, and high-end.

3. Massive Weight Reduction: By deleting the bulky OEM muffler assembly, you shave roughly 20+ lbs off the rear of the car—improving the C8's already legendary center of gravity.

4. Maximum Scavenging: Featuring a precision-engineered X-Pipe design, this system balances exhaust pulses between cylinder banks, increasing flow velocity and adding that high-pitched, exotic "scream" at high RPM.

5. T304 Stainless Steel: Fully mandrel-bent 3.0" tubing ensures zero restrictions and a lifetime of corrosion resistance.