RPI Designs - Salem Ohio

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1970 C3 Corvette 350 (Exc. Special Hi-Po) Engine Dual Exhaust System - RPIDesigns.com
Item Details
1970 C3 Corvette 350 (Exc. Special Hi-Po) Engine Dual Exhaust System
Item Name:
1970 C3 Corvette 350 (Exc. Special Hi-Po) Engine Dual Exhaust System
Item #:
70-Chevy-Corv-350-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
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1970 C3 Corvette 350 (Exc. Special Hi-Po) Engine Dual Exhaust System

Restore the classic tone and performance of your 1970 Corvette with this factory-style dual exhaust system—engineered specifically for models equipped with the standard 350ci V8 (excluding Special High Performance). Built to match OEM specifications, this system offers the perfect blend of stock appearance, smooth exhaust flow, and long-lasting durability.

Crafted by experienced builders and available in aluminized or stainless steel, this system is ideal for restorations, weekend cruisers, or local show cars. It's a clean, reliable upgrade for those looking to maintain a period-correct look with modern quality materials.

System Includes:
  • Left and right front exhaust pipes (2" diameter)
  • Left and right rear exhaust pipes (2" diameter)
  • OEM-style mufflers with 2" inlet and outlet

Note: Stainless steel systems take 4–6 weeks to fabricate and are built using compression bending to reflect original factory construction.

Available Add-Ons:
  • Turbo Mufflers – Offers a deeper, throaty tone
  • Clamp & Hanger Kit – Universal mild steel, perfect for installation
Materials & Specifications:Aluminized Steel:
  • Tubing: 16 gauge (1-3/4", 2") and 14 gauge (2-1/4", 2-1/2")
  • Mufflers: 18 gauge
Stainless Steel:
  • Tubing: 304 stainless steel, 14 gauge
  • Mufflers: 409 stainless steel, 18 gauge

All tubing is conventionally bent, not mandrel bent, for accurate factory-style routing. Minor fabrication marks may be present due to the hand-built process—perfectly acceptable for driver builds and local car show quality.

Fitment Note: OEM-Only System

This exhaust system is designed for OEM exhaust manifolds only. If you’re running aftermarket headers or oversized pipes, cutting and modification will be required, and the system will be sold as-is without warranty coverage in those cases.

Professional installation is highly recommended to ensure proper fit and alignment.

Return & Warranty Policy:

Due to rising material and labor costs, refunds are not offered. However, if your system was incorrectly fabricated, we offer complimentary re-bending, provided:

  • You're using OEM manifolds
  • Accurate vehicle information was provided during checkout
Return Eligibility (Only if full system is incorrect):
  • Return request must be submitted within 14 days of delivery
  • Product must be unused, unmodified, and in original packaging
  • All returns are subject to a 15% restocking fee
  • Any errors from incorrect information supplied by the customer are their responsibility
Why This System Is Right for You:
  • Designed specifically for 1970 Corvette 350 (Exc. Special Hi-Po)
  • OEM-style look, fit, and tone
  • Built with high-quality stainless or aluminized steel
  • Optional muffler and clamp upgrades
  • Handcrafted to match original factory specs

Bring your 1970 Corvette back to life with a dependable, factory-style exhaust system built for lasting performance and show-ready sound.

1970 Corvette 350 Base Engine Dual Exhaust System – OEM Style.  This exhaust system is made for 1970 Corvettes with the base 350 engine (not the Special High Performance version). It includes 2-inch pipes and OEM-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

Chevrolet, Chevy, Camaro, 427, Z06, Grand Sport, ZR1, ZL1, Stingray and Corvette are registered trademarks of General Motors Corporation. RPI Designs, LLC. has no affiliation with General Motors Corporation.

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