Flowmaster
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
- Catalog SKU
- flo817174
- Manufacturer part #
- 817174
- ✓Secure checkout
- ✓Enthusiast support
- ✓Free shipping on eligible $300+ merchandise subtotals in the lower 48 states
- Returns policy
Some products and vendors are excluded, including freight/LTL and oversized items.
One Parts Desk request covers fitment, availability, and timing.
Price matches are reviewed before purchase and are not guaranteed.
Project Garage
Plan this exact partSave the selected option to a build plan in this browser. No account required.
Fitment is not verified for your saved vehicle.
Product details
Product information
Overview
For the person who is looking for a complete Crossmember-Back dual exhaust system for your 1955-1957 Chevy coupes and sedans. This American Thunder® system is manufactured from 2.50-inch mandrel-bent stainless steel for maximum performance and longevity, and includes a built-in H-pipe for a mellow smooth tone eliminating back rap on deceleration. The system includes a pair of Super 40® Series performance mufflers for a deep exterior sound, with a moderate interior tone and dual tailpipes tucked up high for clearance and exit straight out the back under the rear bumper. Like all Flowmaster® systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation. Covered by our Lifetime Limited Warranty. Notes: Does Not fit wagons or convertibles.
Fits 1955-1957 Chevrolet cars with V8 engine. Does Not fit convertibles or wagons.
Features & Benefits
- Does Not Include Header Reducers or Downpipes for Factory Manifolds
- H-pipe Crossover for Maximum Power and Deep Tone
- Super 44 Series Mufflers for Deep Powerful Sound
- Includes Hangers and Hardware for Installation
- Mandrel-bent 16-gauge Stainless Steel Tubing
- Moderate to Aggressive Exterior Exhaust Tone
- Crossmember-Back True Dual Exhaust System
- Lifetime Limited Warranty
Application & fitment
Fitment has not been independently verified for your vehicle. Confirm the manufacturer application against your year, make, model, trim, and modifications before ordering.
Shipping & availability
Processing and carrier timing vary by stock status and destination. Final shipping services and costs are confirmed at checkout.
Keep comparing