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  • Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
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Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
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Load image into Gallery viewer, Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
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Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174

Exhaust, Mufflers & Tips Catback
Flowmaster
flo817174
In stock
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$1,121.21 $1,406.95
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
Flowmaster 04-05 RAM 1500 HEMI American Thunder SS Exhaust System - 817397
Flowmaster 04-05 RAM 1500 HEMI American Thunder SS Exhaust System - 817397
$1,257.95 $1,002.80
Flowmaster 67-70 Mustang American Thunder THRU VALANCE SS Crossmember-Back Exhaust System - 817281
Flowmaster 67-70 Mustang American Thunder THRU VALANCE SS Crossmember-Back Exhaust System - 817281
$1,124.95 $896.96
Flowmaster 55-57 Chevrolet 2.5in. American Thunder SS Crossmember-Back Exhaust System - 817174
SKU: flo817174
Product Details

Everything You Need To Know

Review product information, shipping and returns, and price-match details before you order.

Product Info

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
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Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

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To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

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