RPI Designs - Salem Ohio

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1970 C3 Corvette 350 (Special High Performance) Engine Dual Exhaust System - RPIDesigns.com
Item Details
1970 C3 Corvette 350 (Special High Performance) Engine Dual Exhaust System
Item Name:
1970 C3 Corvette 350 (Special High Performance) Engine Dual Exhaust System
Item #:
70-Chevy-Corv-350HiPo-ClasE
Price
$849.99  $700.00
Average Rating:

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Item Options
Material
Muffler Options
Universal Mild Steel Heavy Duty Clamp/Hanger Kit
Entry Required
Year, Make, Model, Body, Engine Size, Transmission
Item Price
Your Price:
$700.00
Quantity:

1970 C3 Corvette 350 (Special High Performance) Engine Dual Exhaust System

Enhance the performance, tone, and originality of your C3 with this 1970 C3 Corvette 350 (Special High Performance) Engine Dual Exhaust System. Designed to fit Corvettes equipped with the factory high-performance 350 engine, this system delivers an authentic OEM-style look and sound, while improving exhaust flow and maintaining period-correct specs.

Crafted from aluminized or stainless steel, this system is perfect for enthusiasts, weekend cruisers, and restorers looking for reliable performance and long-lasting build quality. With factory-style bends and fitment, it’s a true match for your small block powerhouse.

What’s Included:
  • Front Pipes: 2" (front section), 2-1/4" (rear section)
  • Rear Pipes: 2-1/2" diameter
  • Mufflers: 2-1/2" inlet / 2" dual outlet

All tubing is compression bent, not mandrel bent, for an accurate factory-style appearance.

Note: Stainless steel systems require 4–6 weeks for fabrication.

Available Options (Choose at Checkout):
  • Turbo Mufflers for a deeper, more aggressive tone
  • Universal Mild Steel Clamp & Hanger Kit for easy installation
Material Specs:Aluminized Steel:
  • Tubing: 16-gauge (1-3/4", 2") / 14-gauge (2-1/4", 2-1/2")
  • Mufflers: 18-gauge
Stainless Steel:
  • Tubing: 304 stainless, 14-gauge
  • Mufflers: 409 stainless, 18-gauge

These systems are designed for driver-level builds and local car show quality, not concours-level restorations. Minor fabrication marks or imperfections are to be expected.

Fitment Notes – OEM Manifolds Only:
  • This exhaust system is designed to fit OEM exhaust manifolds.
  • If you plan to use headers or oversized pipes, you will need to cut and modify the front pipes.
  • Systems used in this way are sold as-is and not covered under warranty.

Professional installation is recommended to ensure proper fitment and performance.

Return & Warranty Policy:

We do not offer refunds due to the custom nature and material cost of these systems. However, we will provide complimentary re-bending if your system was incorrectly fabricated, under the following conditions:

  • You are using OEM manifolds
  • Accurate vehicle information was provided at the time of order
Return Eligibility (Only if the full system is incorrect):
  • Must be requested within 14 days of delivery
  • System must be unused, unmodified, and returned in original packaging
  • Returns are subject to a 15% restocking fee
  • Any misinformation provided by the customer is their financial responsibility
Why Choose This Exhaust System?
  • Made for 1970 Corvette 350 SHP engine
  • Built to original OEM specifications
  • Available in aluminized or stainless steel
  • Optional mufflers and installation hardware available
  • Quality fabrication designed for long-term performance

Complete your restoration or upgrade with a dual exhaust system that delivers authentic sound, OEM fitment, and long-lasting value—built specifically for your 1970 Corvette 350 SHP.

1970 Corvette 350 SHP Dual Exhaust System – OEM Style.  This exhaust system is made for 1970 Corvettes with the 350 Special High Performance engine. It includes 2", 2-1/4", and 2-1/2" pipes with factory-style mufflers and is available in stainless or aluminized steel. Turbo mufflers and hardware kits are optional.
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RPI Designs
11800 Salem Warren Road
Salem, Ohio 44460

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