Flowmaster Dual Exhaust Kit American Thunder 2-1/2" Stainless Steel With Tips For Valance Holes Coupe/Fastback V8 1967-1970

Flowmaster:
817281
Rating:
100% of 100

Highlights

  • Mandrel Bent 409 SS Tubing
  • Classic Flowmaster Sound
  • Aggressive & Powerful Tone
  • Header-Back System
MSRP $966.00
$782.95
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Product Description

Flowmaster Stainless Steel 2-1/2" American Thunder Dual Exhaust Kit with Stainless Steel Tips that Exit Through Rear Valance for 1967, 1968, 1969 and 1970 V8 Coupe and Fastback Mustangs.

If your 1967-1970 Coupe or Fastback Mustang is in need of an exhaust upgrade, Flowmaster has you covered! This Flowmaster Stainless Steel 2-1/2" American Thunder Dual Exhaust Kit with Stainless Steel Tips that Exit through the Rear Valance (817281) features the iconic Flowmaster aggressive exhaust note.

Kit Information:
- Mandrel Bent 16gauge 409 Stainless Steel Tubing
- Super 44 mufflers for the Classic Flowmaster Sound
- Aggressive And Powerful Exterior Exhaust Tone
- Includes H-Pipe, Hangers and Hardware
- Header-Back System
- Dyno Tuned for Maximum Performance

This exhaust system features mandrel bent tubing for maximum performance and includes specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage.

*Does not fit Convertibles or Mustangs with staggered shocks.

When you're looking for an exhaust for your 1964-2017 Mustang, every owner needs to check out Flowmaster's exhaust systems and mufflers. Flowmaster is a manufacturer of just about any part you need for your Mustang's exhaust, from full exhaust systems and exhaust kits, to mufflers and accessories. Flowmaster is widely known for their distinctive 'Flowmaster sound,' which is available in mild, moderate and aggressive tones. CJ Pony Parts is proud to partner with Flowmaster, so you know you can find the perfect muffler or exhaust system for your Mustang right here today! Browse the dozens of Flowmaster products CJ's proudly offers today!

Order this Flowmaster (817281) Stainless Steel 2-1/2" American Thunder Dual Exhaust Kit with Stainless Steel Tips that Exit Through Rear Valance for your 1967, 1968, 1969 or 1970 V8 Coupe or Fastback Mustang today from CJ Pony Parts!

California Residents: Proposition 65 Warning

Related Categories: Mustang Parts, Mustang Exhaust, Mustang Dual Exhaust Kits, Restomod Parts, Restomod Exhaust

Installation & Fitment

Installation Difficulty

Difficult
Difficult

Advanced skill is required for this installation.

Installation Videos

Video Transcript

Bill: We have a special guest in our studio today. Alex, the regional sales manager from Flowmaster, is here to tell us about the company. Alex thanks for coming.

Alex: Thank you for having me Bill. How are you doing today?

Bill: I'm doing good. We all know the two chamber Flowmaster. If you had a Fox Body back in the day you had some Flowmasters on it. But what else can you tell us about your company?

Alex: Well, Flowmaster is an aftermarket performance exhaust manufacturer, Bill, that started off on the racetracks. Ray Flugger, the founder of the company, designed mufflers for racers that were being hammered for excessive noise limits. Flowmaster presents that opportunity where you're able to reduce those dB levels without having to hurt or kill performance. Flowmaster is also one of the most significant speed parts of all time where we are actually an innovative product different from the standard that's out there.

Bill: The two chamber Flowmaster that was the original product he was selling out of a suitcase.

Alex: The 40 Series, except with some slight modifications on the case itself. Back then it was a square case and now it's more of a round oval.

Bill: The other mufflers you have here, what can you tell me about them?

Alex: Here we have a 50 Series Delta Flow to the far right, which is a three chamber design, a little more subdued, a little mellower for those that are looking for less interior resonance. In the middle here we've got a Super 40, which is a two chamber design, a little thicker, a little wider, which is set up to handle higher output applications. To the far left we've got a Super 44, which is the latest and greatest two chamber design that Flowmaster has released in recent years.

Bill: Is that still based off of the original design?

Alex: That is correct.

Bill: I know Flowmaster has a lot of kits available for the 2005 and newer Mustangs. What can you tell me about these two kits you brought with you today?

Alex: Well, Bill here we've got a Force II exhaust system from Flowmaster. It's a direct bolt on axle back 409 stainless steel with a limited lifetime warranty, fully constructed here in the U.S. It's got the rolled edge stainless steel tip with the nice four inch diameter. All of the hardware, everything you need, is included within the kit so you don't have to buy any additional accessories.

This would probably take you an hour and a half to install out of your own garage on a weekend. Very subdued, very mellow kind of tone, something designed for someone who's looking for more of a performance aspect with a little bit of rumble, nothing too wild, nothing too crazy.

Over here on the right we've got the Outlaw System. The Outlaw is very noticeable, very aggressive. It's the 'hear me from a mile away' type of sound, something I would only recommend to those who are fully aware of what they're getting. It utilizes an Outlaw race muffler, basically a muffler that was designed for race applications that are required to run mufflers without a specific dB limit. Again, I only recommend it to those that are looking for the aggressive tone from Flowmaster. It is fully built out of stainless steel, lifetime warranty as well.

Bill: The Outlaw is available for '05 and up for both the 5.0 liter and the 4.6 liter cars?

Alex: That is correct.

Bill: We know Flowmaster that has systems that fit all year Mustangs, but I heard you guys are getting in other parts of the exhaust as well?

Alex: That's right, Bill. We actually just released a full line of stainless steel headers, ceramic coated, very high end piece. They look great. It'll compliment the rest of your exhaust components. We also just released a full line of catalytic converters, both 49 state and carb certified.

Bill: If you're looking for that classic Flowmaster sound, it doesn't matter what year your car is, Flowmaster has a system that will fit your Mustang.

Vehicle Fitment

This product will fit the following Mustang years:

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