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Flowmaster American Thunder Crossmember-Back Exhaust System 817158

Flowmaster American Thunder Crossmember-Back Exhaust System 817158
Flowmaster American Thunder Crossmember-Back Exhaust System 817158Flowmaster American Thunder Crossmember-Back Exhaust System 817158Flowmaster American Thunder Crossmember-Back Exhaust System 817158Flowmaster American Thunder Crossmember-Back Exhaust System 817158Flowmaster American Thunder Crossmember-Back Exhaust System 817158
$1,148.99 ea
NEWARRIVING SOONEstimated Ship Date 01/07/2025 (If Ordered Today)17 Available from HOLLEY PERFORMANCE PRODUCTS as of 12/20/2024
Model: 3208633
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 3
STORE PICKUP
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For the person who is looking for a true dual crossmember-back exhaust system with an moderate to aggressive exhaust tone. With an easy fit in mind, these systems are constructed from 16-gauge 2.50-inch mandrel-bent stainless steel tubing with a built-in H-pipe crossover, a pair of specially selected Super 44 Series performance mufflers and includes all hangers and hardware necessary for installation. The tailpipes exit in the factory location behind the rear wheels. The exhaust system delivers an aggressive to moderate exterior sound tone with a moderate interior tone and is best suited for the enthusiast who wants their performance to be heard. Like all Flowmaster exhaust systems, the benefits include improved throttle response, power and mileage. Covered by our Lifetime Limited Warranty.
Features:
  • Super 44 Series Performance Mufflers for Deep Powerful Sound
  • Crossmember-back True Dual 2.50-inch Exhaust System
  • Includes Hangers and Hardware for Installation
  • Mandrel-bent 16-gauge Stainless Steel Tubing
  • Aggressive to Moderate Exterior Exhaust Tone
  • Does Not Include Header Reducer Cones or Downpipes for Factory Manifolds
  • H-pipe Crossover for Maximum Power
  • Lifetime Limited Warranty
Fits 1968-1974 Chevrolet Nova with V8 engine.
Installation Notes:
Fits 1968-1974 Chevrolet Nova with V8 engine.

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
817158_instructions.pdf3.41MB

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
Chevrolet Chevy II Nova 1968 5.0L / 307 / V8
5.3L / 327 / V8
6.5L / 396 / V8
Chevrolet Nova Base 1969 5.0L / 307 / V8
6.5L / 396 / V8
Chevrolet Nova Base 1970 5.0L / 307 / V8
6.5L / 396 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet Nova Base 1971 5.0L / 307 / V8
6.6L / 402 / V8
7.4L / 454 / V8
Chevrolet Nova Base 1972 5.0L / 307 / V8
6.6L / 402 / V8
Chevrolet Nova Base 1973 5.0L / 307 / V8
Chevrolet Nova Custom 1973 5.0L / 307 / V8
Pontiac Ventura Base 1971 5.0L / 307 / V8
5.7L / 350 / V8
Pontiac Ventura Base 1972 5.0L / 307 / V8
5.7L / 350 / V8
Pontiac Ventura Base 1973 5.0L / 307 / V8
5.7L / 350 / V8
Pontiac Ventura Base 1974 5.7L / 350 / V8
Pontiac Ventura Custom 1973 5.7L / 350 / V8
5.0L / 307 / V8
Pontiac Ventura Custom 1974 5.7L / 350 / V8
Pontiac Ventura GTO 1974 5.7L / 350 / V8

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 2
Muffler Series Super 44 Series
Outlet Diameter (in) 2.5
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Single Dual Single
Sound Level Aggressive / Moderate
System Type Crossmember-back
Tube Diameter 2.5 inch
Tubing Diameter (in) 2.5
Type of Exhaust Crossmember-back
Warranty Limited Lifetime (Lifetime)

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