HKS 3106-EX006 Hi-Power Axle Back Exhaust -Stainless for 93-96 Mazda RX-7 Turbo

Vehicle Fitment

• 1993-1996 Mazda RX-7 FD3S (13B-REW turbo engine; RWD)

Fitment Notes

• Rear section (axle-back) replacement only--muffler and tip assembly
• Not a full cat-back--does not include mid-pipe or downpipe
• Compatible with stock or aftermarket mid-pipes; gaskets required

Features

• 75 mm (≈2.95") mandrel-bent SUS304 stainless piping
• 120 mm "HP" style polished stainless steel tip
• TIG-welded stainless steel construction built for durability
• Aggressive exhaust tone tuned for rotary engine characteristics
• Improved flow over OEM muffler--enhanced mid-range torque and high RPM power
• Streamlined routing removes unnecessary bends for maximum efficiency
• Lifetime warranty on muffler materials and craftsmanship
• Simple bolt-on rear replacement using factory hangers

Specifications

• Piping Diameter: 75 mm (≈2.95")
• Tip Diameter: 120 mm (≈4.72") single HP-style exhaust tip
• Material: SUS304 stainless steel throughout
• Weight: approx. 15 kg
• Exit: single rear exhaust outlet

Included Components

• 1x HKS 3106-EX006 Hi-Power rear muffler section with 120 mm tip
• Mounting hardware and exhaust gasket
• Installation instructions

Product Description

The HKS 3106-EX006 Hi-Power rear section is a bolt-on axle-back upgrade designed specifically for the 1993-1996 Mazda RX-7 FD3S with the 13B-REW turbo engine. Constructed from 75 mm SUS304 stainless steel with a 120 mm polished HP tip, this muffler enhances exhaust flow and delivers an aggressive rotary-specific tone.

Designed to connect to existing mid-pipes, this rear muffler section improves throttle response and power delivery at high RPM. Its simplified layout eliminates excess bends for the cleanest airflow path. The assembly plugs into stock hangers and is backed by HKS's lifetime craftsmanship warranty. Please note, mid-pipe and downpipe components are not included.