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Flowmaster American Thunder Crossmember-Back Exhaust System 817104

Flowmaster American Thunder Crossmember-Back Exhaust System 817104
Flowmaster American Thunder Crossmember-Back Exhaust System 817104Flowmaster American Thunder Crossmember-Back Exhaust System 817104Flowmaster American Thunder Crossmember-Back Exhaust System 817104
$1,504.99 ea
NEWARRIVING SOONEstimated Ship Date 07/03/2024 (If Ordered Today)6 Available from HOLLEY PERFORMANCE PRODUCTS as of 06/13/2024
Model: 3146952
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 3
Flowmaster® is proud to introduce our American Thunder® dual exhaust system for 1967-1974 Chevrolet Camaro, Pontiac Firebird and 1968-1974 Chevrolet Nova's. This all stainless steel exhaust system features our exclusive design 80 Series™ Crossflow muffler, all mandrel-bent dual 2.50-inch pipes including an H-pipe crossover for a deep smooth tone that also minimizes any back-rap on deceleration. The dual 2.50-inch stainless steel tailpipes provide a deep rich sound and optimum performance. This crossmember-back 409S stainless system gives these classic muscle cars a moderate tone inside and out. Using the crossflow design, this exhaust places the muffler in the factory location behind the rear axle retaining full ground clearance under the car while offering all the performance benefits of a full dual exhaust system. The system includes all parts, hardware and illustrated instructions, and like all Flowmaster stainless steel street products, it includes our Limited Lifetime Warranty.
Features:
  • H-pipe Crossover for Maximum Power and Deep Tone
  • Includes Hangers and Hardware for Easy Installation
  • 80 Series Cross-flow Performance Muffler
  • Mandrel-bent Stainless Steel Tubing
  • Moderate Exterior Exhaust Tone
  • Maximum Ground Clearance
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Crossmember-back System
Convertible models require 3/8-inch of shims on the factory X-brace for clearance of the exhaust tubing.
Installation Notes:
Convertible models require 3/8-inch of shims on the factory X-brace for clearance of the exhaust tubing.

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
817104_instructions.pdf2.97MB

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Chevrolet Camaro 1967 5.7L / 350 / V8 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Chevrolet Camaro 1968 5.7L / 350 / V8 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Chevrolet Camaro 1969 5.7L / 350 / V8 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Chevrolet Camaro 1970 5.7L / 350 / V8 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Chevrolet Camaro 1971 5.7L / 350 / V8 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Chevrolet Camaro 1972 5.7L / 350 / V8 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Chevrolet Camaro 1973 5.7L / 350 / V8 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Chevrolet Camaro 1974 5.7L / 350 / V8 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird Trans Am 1969 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird Trans Am 1970 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird Trans Am 1971 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird Trans Am 1972 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird Trans Am 1973 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird Trans Am 1974 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1967 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1968 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1969 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1970 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1971 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1972 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1973 Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1974 Convertible models require an aftermarket X-brace or 3/8 shims for clearance

Specifications:

2WD/4WD 2WD
California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required Yes
Emission Code 5
Exhaust Series American Thunder
Exit Position Dual Out Rear
Heat Shield No
Inlet Diameter (in) 2.5
Material 409 Stainless Steel
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series 80 Series Crossflow
Outlet Diameter (in) 2.5
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Single Dual Dual
Sound Level Moderate
System Type Crossmember-back
Tip Quantity Not Included
Tube Diameter 2.5 inch
Tubing Diameter (in) 2.5
Type of Exhaust Crossmember-back
Warranty Limited Lifetime (Lifetime)

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Flowmaster American Thunder Crossmember-Back Exhaust System 817104:
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