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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
Only 1 left in stock, order soon!
Arrives
Oct 7 – Oct 8
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Features
- Lifetime Limited Warranty
- Black and Ceramic Tips
- Super Aggressive Sound
- Stainless Steel Construction
Description
Flow master 817691 Outlaw Stainless Steel Aggressive Sound Cat-Back Exhaust System
Brand: Flowmaster
Item dimensions L x W x H: 59 x 15.3 x 13.9 inches
Vehicle Service Type: Car
Shape: Oval
UPC:
Brand: Flowmaster
Item dimensions L x W x H: 59 x 15.3 x 13.9 inches
Vehicle Service Type: Car
Shape: Oval
UPC: 700042031023
Manufacturer: Flowmaster
Global Trade Identification Number: 23
OEM Part Number: 817691
Model: 817691
Item Weight: 58.9 pounds
Product Dimensions: 59 x 15.3 x 13.9 inches
Item model number: 817691
Is Discontinued By Manufacturer: No
Exterior: Painted
Manufacturer Part Number: 817691
Date First Available: April 5, 2014
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Oct 7 – Oct 8
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: Base Product
Best sounding exhaust for the 5.0 out there. Very aggressive, loud but not much drone. Only experienced significant drone while towing a 34' 12000 lb camping trailer. Excellent build quality and installation took less than 45 minutes. Can not beat this exhaust. Best value out there.
Reviewed in the United States on July 22, 2015 by Zach
Style: Base Product
Complete bolt on system sound quality of the system is 10/10 it’s loud. Only problem I had was had to replace the bolts for the exhaust tips with grade 8 steel bolts the original ones snapped I recommend washers if you have to replace them
Reviewed in the United States on September 12, 2022 by Noah D.
Style: Base Product
Very easy to install, had a little trouble getting the tips on the exhaust pipe but it was worth the extra effort. The system sounds, and looks great!
Reviewed in the United States on March 20, 2020 by Harry
Style: Base Product
Bought the system and installed it about 4 months ago on my 2009 4.6 3v f150. Since then I have enjoyed this exhaust system and recommend it to anyone who wants the loudest exhaust kit for the 09-14 f150s. Pros: - Exhaust is extremely deep and loud and I get compliments on it all the time. - Pipes look great (stainless steel and mandrel bent) and the black tips really set it off. - Drone is not terrible (granted I have 33' Nitto trail grapplers and always have the radio on which both cancel out the sound while cruising). - Install was not terrible, I rented a spot at a shop and was able to use a lift and their tools and with that it only took a few hours by myself. The main pipe, muffler, and passenger side went in easy; driver side was a little more difficult but not bad. Cons: - One of the pipe's hangers was bent upward which would not allow it to install correctly in the factory mount. - After installing everything, the driver side tip ended being about 4 inches inward which looked horrible. - While the clamps look like high quality, they do a horrible job at holding the exhaust. The driver side pipe would not hold at all and kept falling to point of almost dragging on the ground. Also after everything was installed the clamps made the exhaust look weird from the driver side and rear view. Since the clamps looked bad (also made the exhaust look like it could be disassembled by anyone in the street), exhaust was not even on each side, and having my driver's side pipe constantly hanging; I decided to go out and have an exhaust shop weld everything for me. If you get this system then I highly recommend you get it welded together. After being welded it has been the best exhaust system I've owned to date. It turn heads every time I drive my truck which I love and it looks amazing.
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Reviewed in the United States on December 20, 2016 by Zach
Style: Base Product
I am very satisfied with this exaust assembly. It was easy to install but it's better to have two people. I like how you can have to option to have the tips go straight out rear or 90°. It's is very auidible, considering it's flowmaster's aggressive series mufflers. DO NOT get this if you're just trying to get a little more rumble than your stock exaust. I've gotten almost 2mpg more and feel just a little more power. The down side is, drone going highway speeds (65-75mph). It doesn't bother me but I can see how it would annoy passengers. Keep in mind it IS loud, with a deep growl and iv received a lot of complements from people who have ridden in my truck.
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Reviewed in the United States on January 24, 2017 by Josh
Style: Base Product
This exhaust system was too loud to have on vehicle for a daily driver. Maybe for a showcar it would be ok. But after a few minutes inside vehicle you would develop a headache. I definitely would NOT recommend them. I contacted the seller about a return/refund but it was a no go! Good luck to you on EBAY or Craig's List was there reply!!!! REAL Customer service there! I would never buy from Synergy again.
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Reviewed in the United States on January 22, 2015 by Rita
Style: Base Product
Arrived sooner then expected. It is a super loud and deep exhaust. I now have the loudest exhaust on the block. Wakes my neighbors up in the morning. I love it. Only bad thing is on the driver side exhaust keep sagging a little. However once I get it welded it won't sag any more. Great product worth every penny.
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Reviewed in the United States on August 20, 2016 by Branden Edwards
Style: Base Product
Sounds great on my 2010 FX4 and fit perfectly. Just make sure you read the directions carefully. They make it idiot proof, I had to cut down an extension pipe but the exact measurement was also included in the instructions. Provides a good deep aggressive tone.
Reviewed in the United States on February 14, 2016 by Joe