855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE

Flowmaster American Thunder Crossmember-Back Exhaust System 17139

Flowmaster American Thunder Crossmember-Back Exhaust System 17139
Flowmaster American Thunder Crossmember-Back Exhaust System 17139Flowmaster American Thunder Crossmember-Back Exhaust System 17139Flowmaster American Thunder Crossmember-Back Exhaust System 17139
$1,085.99 ea
NEWARRIVING SOONEstimated Ship Date 12/19/2024 (If Ordered Today)2 Available from HOLLEY PERFORMANCE PRODUCTS as of 12/03/2024
Model: 2033771
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
STORE PICKUP
[More Info]
This American Thunder® exhaust system comes as a complete true dual crossmember-back exhaust for your 1969 Chevrolet Camaro or Pontiac Firebird with V8 engine. These dual systems feature 2.50-inch mandrel-bent aluminized steel tubing for maximum performance, includes a built-in H-pipe/balance tube flowing into a pair of Super 44® mufflers that deliver an aggressive to moderate interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The 2.50-inch tailpipes exit straight out under the rear bumper and are finished off with 2.50-inch angle-cut brushed stainless steel tips and includes all hangers and necessary hardware for installation. Like all Flowmaster® systems, the benefits include improved throttle response, power and mileage. Covered by our 3-year Limited Warranty.
Features:
  • H-pipe Crossover for Maximum Power and Deep Tone
  • Super 44 Series Mufflers for Deep Powerful Sound
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Includes Hangers and Hardware for Installation
  • Moderate to Aggressive Exterior Exhaust Tone
  • 2.50-inch Angle Cut 304 Stainless Steel Tips
  • Crossmember-Back True Dual Exhaust System
  • Does Not Include Header Reducers or Manifold Downpipes
  • Exits in the Factory Location
  • Flowmaster Quality
Note: Does not fit Convertible models without modification to the factory X-brace. You will need to shim the brace with 3/8-inch of spacers or purchasing Hotchkis Performance Convertible brace Part# 1404.
Installation Notes:
Note: Does not fit Convertible models without modification to the factory X-brace. You will need to shim the brace with 3/8-inch of spacers or purchasing Hotchkis Performance Convertible brace Part# 1404.

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
17139_instructions.pdf3.39MB

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 Base 1969 LS Swap
Chevrolet Camaro RS 1969 LS Swap
Chevrolet Camaro SS 1969 LS Swap
Chevrolet Camaro Z28 1969 LS Swap
Chevrolet Camaro 1969 4.9L / 302 / V8
7.0L / 427 / V8
5.7L / 350 / V8
5.0L / 307 / V8
5.3L / 327 / V8
6.5L / 396 / V8
Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 350 HO 1969 LS Swap
Pontiac Firebird 350 1969 LS Swap
Pontiac Firebird 400 1969 LS Swap
Pontiac Firebird Base 1969 LS Swap
Pontiac Firebird Sprint 1969 LS Swap
Pontiac Firebird Trans Am 1969 LS Swap
Convertible models require an aftermarket X-brace or 3/8 shims for clearance
Pontiac Firebird 1969 6.6L / 400 / V8
5.7L / 350 / V8
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 Aluminized Steel
Muffler Part Number 942546
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 Dual
Sound Level Aggressive / Moderate
System Type Crossmember-back
Tip Diameter (in) 2.5
Tip Quantity 2
Tube Diameter 2.5 inch
Tubing Diameter (in) 2.5
Type of Exhaust Crossmember-back
Warranty Time 36 Months

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

Flowmaster American Thunder Crossmember-Back Exhaust System 17139:

Frequently bought together

Redline Restomotive® GM Vehicle Door Panel Mounting Clip Set
Model: 2032611
Condition: NEW
$12.99 st $6.34
51.2%
Redline Restomotive® Battery Tray Hold-Down Clamp, Black
Model: 2028774
Condition: NEW
$6.99 ea $3.96
43.3%
Redline Restomotive® GM Cars Interior Dome Light / Lamp Lens
Model: 2035117
Condition: NEW
$13.99 ea $6.89
50.8%
Redline Restomotive® Door Sill Plate Screw Set
Model: 2035366
Condition: NEW
$6.99 kt $3.09
55.8%
Muscle Cars & Classics 2024