- Product Details
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# FLM-817234 - Pontiac Firebird 5.0L / 5.7L 1986-1991; (W/2.50" Flanged Cat), 3.00" Mandrel Bent Tubing, 80 Series Crossflow Muffler, 3.00" T304 Polished Stainless Steel Tips, American Thunder, DOR, 16 Gauge 409S Stainless Steel.
With Flowmaster Exhaust System you will optimize your vehicles exhaust system to get the best performance, blocking out the unnecessary noise at the same time. Each unit of the exhaust system is built with high-grade stainless steel to serve you a lifetime of performance. The stainless steel pipes come with lifetime warranty, while the muffler is backed up by 5-yr warranty.
Brand: Flowmaster Part Number: FLM-817234 UPC: 700042024926
Flowmaster Exhaust Systems are US-made, each unit is precisely dyno-tuned and shaped to fit selected model and production year vehicle and deliver great increase in torque and h horsepower. Even the polished muffler tip is built with premium stainless steel. Each exhaust system has an easy bolt-on installation and requires no modifications to the vehicle for the installation.
FlowmasterŽ - American Thunder Kit, with 2.50" Flanged Cat, 409S Stainless Steel (10 latest reviews)
Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for the purchased product, please follow the link in the email message that you will receive after completing the purchase. You can rate appearance, ease of installation, price/value and product quality.
Customers' rating: 
Appearance 
Ease of Installation Price/Value Quality 
All Flowmaster Exhaust Systems reviews >>Wakes the Car UpPosted on 03/08/12 Timothy H. - 2011 Dodge Charger (Cleveland, TX)Appearance 
Ease of Installation Price/Value Quality "Great product and sound, really wakes the car and neighbor hood up. Has some pretty bad drone in the car at 2,000 RPM and steady at 50 MPH but for us this is not a daily driver so I love it. I've had people stopping me in parking lots to find out what kind of exhaust I had because they loved the way it sounded. If it's your daily driver, I would go for the 50 series flows instead of the 40 series but if you want to turn heads go for this kit. Also at 60-70 MPH it really quiets out so a long trip isn't a problem unless speed limit is 50 the whole way."
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Quality!Posted on 03/10/12 William I. - 1997 Honda Prelude (Greensboro, NC)Appearance 
Ease of Installation Price/Value Quality "This is a great product. I didn't know it was just a rear axle back exhaust system. Regardless, great high quality product."
Was this review helpful?2010 mustangPosted on 09/22/11
Michael G. - 2010 Ford Mustang (Milford, ME)Appearance Ease of Installation Price/Value Quality "bought this for my wifes mustang after about a week of looking at different brands online and i`m glad i choose Flowmaster. it went on very easy and it fit perfectly. the sound is awesome, it has that rumble around town and is quiet at interstate speeds."
Was this review helpful?FlowmasterPosted on 03/01/12 Buffy C. - 2005 Chevy Silverado (Oromocto, NB)Appearance Ease of Installation Price/Value Quality "Very easy to install, sounds good. Very helpful when ordering and only takes 2 weeks or less to receive rate at your door."
Was this review helpful?American Thunder Kit, Aggressive Sound LevelPosted on 12/21/10 Dennis T. - 2010 Chevy Camaro (Warner Robins, GA)Appearance Ease of Installation Price/Value Quality "I purchased the axle-back American thunder kit, aggressive sound level for my 2011 Camaro and I gotta tell ya this is the way to go. The sound is great and you are still able to maintain the needed back pressure. The price is GREAT and when I took them to my local exhaust guy he told me that was what he paid for them. Flowmasters are it!"
Was this review helpful?FlowmasterŽ - American Thunder KitPosted on 07/26/11 Jamie B. - 2004 Nissan Titan (Kincardine, AB)Appearance Ease of Installation Price/Value Quality "This system is of high quality and easy to install. I was very impressed with the fit and it came with all the required hangers. The sound is fairly quiet for dual exhaust which is nice. No need to wake up the neighbors."
Was this review helpful?Flowmaster American Thunder Kit - 6.4LPosted on 10/26/11
Drew S. - 2011 Dodge Challenger (Billings, MT)
Appearance Ease of Installation Price/Value Quality "The Flowmaster American Thunder kit for the 6.4 liter Hemi sounds amazing. The kit was very easy to install no cutting needed. "
Was this review helpful?ExcellentPosted on 03/31/12 Loretta P. - 2007 Chevy Tahoe (Forrest, MB)Appearance Ease of Installation Price/Value Quality "Product arrived on time and was exactly what I wanted. Very pleased."
Was this review helpful?FlowmasterŽ - American Thunder KitPosted on 07/23/10 James H. - 2010 Chevy Camaro (San Antonio, TX)Appearance Ease of Installation Price/Value Quality "Took a few days for the order to arrive. I took them to a local muffler shop and they were installed in less than an hour. Needless to say that the Camaro now sounds like a true muscle car. I had a 69 and 71 Camaro before kids. After 25 years of Mini Vans and SUVs now I enjoy the new Camaro. Like not seeing the stainless steel under the rear end, the performance and look is great. Will see if the mileage will improve in the coming months: without the new kit I was getting 27 on the road. The car looks and feels like a muscle car! Enjoy the new toy! Thank you for your excellent service and products!"
Was this review helpful?FlowmasterŽ - American Thunder KitPosted on 08/20/10 Kevin D. - 2004 Nissan Titan (Irvington, NJ)Appearance Ease of Installation Price/Value Quality "If you want a good exhaust sound, that not to loud this is it. Sounds very mellow, while inside vehicle & while idling, once you press the gas its a different animal, almost no annoying drone noise inside vehicle, as far as extra power I've noticed a slight increase in my midrange, overall this is best bang for your buck."
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FlowmasterŽ - American Thunder Kit, with 2.50" Flanged Cat, 409S Stainless Steel (10 reviews)All Flowmaster Exhaust Systems reviews >>
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