Flowmaster
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System
Why this price?
$1,249.95 is MSRP, the lowest price Flowmaster lets us list it at. Additionally, Pro members get $137.49 back on this part.
$1,249.95 − $137.49 = $1,112.46
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to Flowmaster, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with Flowmaster, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
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.
- 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
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1955-1957 | Chevrolet | Bel Air | Base |
| 1955-1956 | Chevrolet | Bel Air | Beauville |
| 1955-1957 | Chevrolet | Bel Air | Nomad |
| 1955-1957 | Chevrolet | One-Fifty Series | Base |
| 1955-1957 | Chevrolet | Two-Ten Series | Base |
| 1955-1957 | Chevrolet | Two-Ten Series | Del Ray |
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