Flowmaster Exhaust System Kit
Does Not Fit GT or Convertibles.
Exhaust System Kit
Fits 1966 to 1964 Mustang. Does not fit GT or convertibles.
Flowmaster American Thunder true dual exhaust systems are engineered with maximum performance in mind. These systems feature specially tuned mufflers, cross-over pipes, clamps, hangers and mounting hardware. If you're looking for the famous Flowmaster tone look no further. American Thunder will deliver the aggressive tone you want as well as the performance you demand.
Header Back, Exhaust, Kit, Ford, Mustang, V8, Performance
Header-back 409S 64-69 Mustang
Header-back System 409S - Dual Rear Exit - American Thunder - Moderate Sound
Ships within 1-2 business days.
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Fitment Guaranteed
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.