Flowmaster Force II Stainless Steel Single Exhaust System; Side Exit (04-08 5.4L F-150)
$640.95
In Stock
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Description
Rumble and Roar. Rumble down the road with fury with this Flowmaster 409S Signle Side cat-back exhaust kit. It’s designed to really amplify the tune of your exhaust and make it sound intimidating. It’s thrilling to hear just how powerful your truck can sound with the proper modifications. This kit is designed to draw out the serious power from your vehicle so that you can show off with confidence every time that you drive.Mandrel Bent Performance. With this Flowmaster 409S Signle Side…
10 reviews for Flowmaster Force II Stainless Steel Single Exhaust System; Side Exit (04-08 5.4L F-150)
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ScottN –
Sounds great and not to difficult to install. High quality clamps and hanger brackets. The sound is exactly what I was after not too loud, but you know your driving a V8 and not a pedal car.
Willem –
Fitment was simple,got it done in 2 hours. Product fitted correctly,all bents and parts fits excellent. Product was delivered in time and packaging was good. Only questionable thing is the muffler was painted mat black and is not stainless as per description.
Steven2012F150 –
I wanted a deeper growl and rumble but nothing overbearing for the wife and kids. This Flowmaster Force II system delivered exactly that. I love the cold starts in the morning. The look is also excellent. I gave 2 stars for loudness but the increase in sound was exactly the right amount for me – more aggressive but daily drivable for a family truck. Install tips – don’t even bother trying to loosen the factory flange bolts. Just grab a sawzall and zip right through them. You are given replacements. I removed the factory exhaust intact by myself with just a jack and jack stand. It took some effort but was doable. If you don’t plan to keep the factory exhaust for any reason just cut it out as well and you will save a lot of time.
OraW –
Definitely helps to have two people and be prepared to cut the old one out if you don’t have a lift!
Andrew12312 –
Sounds great, perfect if you want a nice low rumble to really make the 5.0 stand out
Redundantgasman –
The Flowmaster Force II is a good-looking exhaust system, but for the EcoBoost, it was not as loud as I would have liked it to be.
DavidWK –
The sound is awesome!! It has a deep rumble sound. It loud enough that you hear ?? it, but not so loud that you can’t carry a conversion or be annoying ??. It was exactly what sound I wanted, with chrome tip dual exhaust out the back. A little pricey, but worth every penny.
DJG281 –
All was good…. Albeit stainless, wall thickness is thin, tends to kink in a pipe bender. My only complaint would be getting the tail pipes up closer to the rear bumper… otherwise a nice system.
RobG5 –
Wanted something that sounded aggressive when I hit the accelerator but nothing obnoxious. This exhaust fits that description perfectly. I won’t wake the neighbors when I leave for work but it puts a big smile on my face getting on the highway.
Jon42 –
Beware, while this cat back is categorized by flowmaster as “stock to mild” interior sound and mild exterior, it is firmly in the moderate interior and exterior sound range. I was looking for an all stainless system to replace my oem since it was rusted out and thought this would be a little louder than stock. It is significantly louder. That being said it’s a nice system and went together no problem. The sound is very very deep and smooth, definitely to my liking coming from owning magnaflows in the past. I would recommend this to anyone wanting a moderate exhaust on a daily driver. If you are buying to just have a bit more sound over stock, leave that stock resonator on the truck or consider at least installing a smaller resonator to cut down on interior drone you get at the lower rpm’s.