Flowmaster American Thunder Crossmember-Back Exhaust System - 817139

Flowmaster American Thunder Crossmember-Back Exhaust System - 817139

$1,065.95
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Flowmaster American Thunder Crossmember-Back Exhaust System - 817139

Flowmaster American Thunder Crossmember-Back Exhaust System - 817139

$1,065.95
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 stainless steel tubing for maximum performance, includes a built-in H-pipe/balance tube flowing into a pair of Super 44® mufflers that deliver a moderate to aggressive 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 and is covered by our Lifetime Limited Warranty. To fit Convertible models without modification to the factory X-brace. You will need to shim the brace with 3/8-inch of spacers, or replace the factory X-brace with Hotchkis Suspension part# 1404 X-brace.

Features:

  • Stainless Steel Exhaust Tips Exit in the Factory Location
  • 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
  • Does Not Include Header Reducers or Factory Manifold Downpipes
  • Lifetime Limited Warranty

Product Specifications:

  • Product Details: Fits 1969 Chevrolet Camaro & Pontiac Firebird with V8 engine. 2.50 inch Stainless Steel - Aggressive to moderate sound
  • California Proposition 65: Yes
  • California Proposition 65 Chemical Name: Chromium (hexavalent compounds), Nickel (Metallic)
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Drive: 2WD
  • Exhaust Series: American Thunder
  • Exhaust Tip Color: Silver
  • Exhaust Tip Connection: Welded
  • Exhaust Tip Cut: Angled
  • Exhaust Tip Diameter: 2.50 IN
  • Exhaust Tip Edge: Slash Cut
  • Exhaust Tip Finish: Polished
  • Exhaust Tip Intercooled: No
  • Exhaust Tip Length: 15.20 IN
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 2
  • Exhaust Tip Resonated: No
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Single Wall
  • Exit Style: Dual Out Rear
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Heat Shield Included: No
  • Inlet Diameter: 2.50 IN
  • Inlet Type: Weld-On
  • Main Piping Diameter: 2.50 IN
  • Mounting Bracket Included: Yes
  • Muffler (Left) Body Height: 4.00 IN
  • Muffler (Left) Body Length: 13.00 IN
  • Muffler (Left) Body Width: 9.75 IN
  • Muffler (Left) Type: Chambered
  • Muffler (Right) Body Height: 4.00 IN
  • Muffler (Right) Body Length: 13.00 IN
  • Muffler (Right) Body Width: 9.75 IN
  • Muffler (Right) Type: Chambered
  • Muffler Body Height: 4.00 IN
  • Muffler Body Length: 13.00 IN
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 9.50 IN
  • Muffler Finish: Black High-Temperature Paint Finish
  • Muffler Flanged Inlet: No
  • Muffler Flanged Outlet: No
  • Muffler Included: Yes
  • Muffler Inlet Connection: Slip-Fit
  • Muffler Inlet Inside Diameter: 2.50 IN
  • Muffler Inlet Outside Diameter: 2.63 IN
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Quantity: 1
  • Muffler Part Number: 842546
  • Muffler Quantity: 2
  • Muffler Series: Super 44 Series
  • Muffler Type: Chambered
  • Part Type: Exhaust System
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Product Type: Exhaust System
  • Sound Level: Aggressive / Moderate
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 2.50 IN
  • Tail Pipe Quantity: 2, Dual
  • Tail Pipe Tapered Outlet: No
  • Type: Crossmember-back
  • Valve Included: No
  • Valve Type: Not Applicable

Installation Notes:

Convertible models require an aftermarket X-brace like Hotchkis Performance part 1404 or 3/8-inch shims to stock X-brace for clearance.

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