2008 Lincoln Navigator Exhaust Muffler 8 Cyl 5.4L Flowmaster

★★★★☆ 4.8/5 50 ratings

Features:
Not A Direct Fit
Moderate Sound
Straight Through Style
Fully Welded Steel Case

3 Offset In/3 Center Out; Clamp On; 409 Stainless Steel
Not Direct Fit-Some Adaptation Required

FlowFX Muffler; 3 Offset In/3 Center Out; Clamp On; 409 Stainless Steel;

FlowFX Muffler

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106 In Stock

Best Price:

$109.95 USD $131.94 USD

Brand	Flowmaster
Part #	F1371229
Condition	New
Warehouse	B

Navigator Flowmaster Exhaust Muffler 2008 Lincoln

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Additional Fitment Information:

Vehicle	Engine	CC	CID	Block Type
2008 Lincoln Navigator	8 Cyl 5.4L	-	330	V

Description Specifications Reviews (50)

3 Offset In/3 Center Out; Clamp On; 409 Stainless Steel
Not Direct Fit-Some Adaptation Required
FlowFX Muffler; 3 Offset In/3 Center Out; Clamp On; 409 Stainless Steel;
FlowFX Muffler

Replacement & Maintenance Guide

Helpful replacement and maintenance guidance for Exhaust Muffler.

System	Exhaust
Description / What It Does	The muffler reduces exhaust noise and helps route exhaust safely behind the vehicle. A rusted or damaged muffler can cause loud noise, fumes, rattles, or failed inspection.
Replace / Inspect Guidance	Inspect yearly, especially in salt climates; replace when leaking, rusted through, rattling internally, or excessively noisy. Salt-belt vehicles may need mufflers every 5–7 years.
Job Difficulty	Moderate DIY
Maintenance Tips	Keep hangers intact, wash off road salt when practical, and repair exhaust leaks before they spread to pipes or flanges.

Today, Flowmaster, Inc. is housed in three ultra-modern facilities together totaling over 400,000 sq. ft., one in Santa Rosa, one in West Sacramento, California and the other in Hayden, Idaho. Flowmaster employs over 250+ workers dedicated to building the highest quality U.S. made exhaust products available.

Flowmaster operates the only exhaust Research and Design facility of its kind in the world, centered around our SuperFlow engine dynamometers complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dynos. Through use of these dynos, Flowmaster's engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers "to the ground." Flowmaster also utilizes Spectrum Analyzers to fine "tune" the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones.

Flowmaster's product line includes exhaust products for Performance Street, Muscle Cars, Trucks, Street Rods, RV's, Motorhomes, and all types of race applications. With over 400 different muffler models, 370+ exhaust systems and numerous exhaust accessories available, Flowmaster offers you the choice of sound to fit your preference from "wild to mild" and your specific vehicle needs. With Ray still active and "hands on" with the R and D department in the development of new exhaust products and new technologies currently being tested, the future looks to be very exciting indeed.

General

Inlet Connection Type

Clamp-on

Inlet Position

Offset

Inlet Quantity

Muffler Body Length

14.000 In.

Muffler Body Width

9.000 In.

Muffler Overall Length

20.000 In.

Muffler Series

Flow Fx

Muffler Type

Absorption

Outlet Connection Type

Clamp-on

Outlet Position

Center

Outlet Quantity

Tip Quantity

WARNING CA Proposition 65

Yes

Information on technical characteristics, the delivery set, the country of manufacture and the appearance of the goods is for reference only and is based on the latest information available at the time of publication.

Gregarious

04 May, 2015

Great muffler. The sound is exceptional, no drone, even at low Rpms. Not too annoying, you can have a conversation in the cabin. I have 2 kids, so this muffler is perfect. When you get on the throttle, you can really hear the Hemi roar!
richard carey

24 Apr, 2015

My 300C with flowmaster 50s sound fantastic.Just the right amount of rumble and quiet when just putting around.Then good ole V8 scream up top.
Brian Ingle "Brian Ingle"

20 Apr, 2015

Installed on my 06 Chevy TrailBlazer. Took a little work and modification but I got it on there. Sounds real good. After I finally got the second one. The first muffler I ordered was damaged. Sent it back and ordered another one. Only shipped in its own box just buying off the parts store shelf.
rob messenger

09 Apr, 2015

The only reason I didn't give it five stars is because it didn't install itself...and when I step on the gas can't make me 21 years old again.Other than that it's pretty much exactly what I was looking for. It has a nice low rumble, and when you step on it it sounds great..deep tone. But when you're just cruising down the road you really don't have to turn the radio up much more or talk louder. Low-end torque is noticeably better, and I'm getting a little better gas mileage. It has heavy duty construction..like I say it didn't install itself and there were times when I was tapping ( Tapping is a subjective term and may not hold up under cross-examination.) on the end of the body with a hammer to get it to slide onto the pipe and it did not phase the muffler. The black paint does scratch pretty easily....but I decided to install it underneath the truck so I really don't see it.
Aaron frydendall

26 Mar, 2015

Not as loud as i expected but does have a meaner sound.
Theory6

24 Mar, 2015

Flowmaster has great sounding mufflers. If you're not sure what to get, look around for videos of your vehicle, but I can assure you this muffler sounds great. I got the 942545 from an AutoPartsWAYe Warehouse deal which I believe was discounted due to being returned. Either way, the sound out of this is loud enough to know at idle and at wide-open that it's a flowmaster, yet quiet enough to still have conversations in the car. If you're looking to give this as a gift, be sure you get the measurements correct to what your car has. My car came stock with 2 1/4" exhaust, but someone has repaired or replaced it at one point before I bought it and it had a 2" exhaust. It's best to get the exact same size, if not, 1/4" larger muffler than exhaust and buy clamps to secure it. It's also clearly marked "inlet" and "outlet" so you know which way it goes on.
Nathan Aihara

23 Mar, 2015

Good quality. Good performance. Quick shipping.
mitch eagles

14 Mar, 2015

Sounds great inside the cab...although I did leave the resonator in place so maybr that is why it dosent sound as aggressive on the outside.
Aljen44

10 Mar, 2015

Excellent flowmaster sound like alwaysbut unless your running a lot of air through your motor 3" is way to big. Other than that side note perfect build quality
Mech

09 Mar, 2015

I was running straight pipes on my chevy 350 so I decided to put two of these on. Let me tell you these definitely will quite things down. Much quieter then a normal 40 series flow master. Don't get me wrong I love the sound just was hoping for a little louder sound.
Andrew

08 Mar, 2015

Arrived on time, and was very well packaged! Installed it on my 2005 Durango and it Sounds amazing!! Was debating on the Super 44 and am glad I stuck with the Super 40. With the replacement of the stock muffler and the resonator it's a very nice deep throaty sound now.
Brad

23 Feb, 2015

awesome Flowmaster sound I have had 40 series on all my vehicles, this was my first time with the delta flow. nearly same volume outside with a noticeable decrease in noise inside the vehicle, almost too quiet after the 3" pipes were run out the back. Made my SRT8 Challenger sound simply wicked with replacing the factory muffler and eliminating the resonators, interior noise is less than wind noise from opening a window.
Tim L.

17 Feb, 2015

This was exactly what I wanted. My Buick Lesabre was a little bit TOO quiet, then again I'm used to driving diesels... After installing this muffler, the Lesabre has a nice quiet burble at idle and sounds a bit nicer while driving. I did have to reset the ECM since the idle went a bit whacky after I installed it, but I attribute that to the loss of backpressure vs the other muffler (Walker SoundFX) I had on it.Installation consisted of cutting off the old muffler with a sawzall and the use of 2 butt clamps found here: http://www.AutoPartsWAY.com/gp/product/B0043DQOYG/Whilst I did have to relocate the tailpipe (it now exits behind the rear pass wheel vs it's dedicated cutout on the bumper) I do plan on fixing that soon. This muffler is about 6 inches shorter than the stock muffler so keep that in mind. You will need to re-arrange some pipes and/or use flex hose unless you are a welder that happens to have access to a pipe bender...I do intend to have a...
Wendell W Null III

14 Feb, 2015

Perfect.
Eduardo Delatorre

31 Jan, 2015

Fast service...item was just as listed
Smitty

26 Jan, 2015

Great product
AutoPartsWAY Customer

24 Jan, 2015

Is torn on this review. The product is great, and sounds awesome. Having said that, my only complaint would be to AutoPartsWAY. This dedicatedly did NOT fit my del Sol... Not out of the box, anyway. I had to buy an adapter for the inlet pipe, and improvise a hangar. Does not match the stock setup at all.
fist full of shells

20 Jan, 2015

Sounds freaking amazing!!! Improved performance I sound like a muscle car coming down the street vroom vroom
newzenith

14 Jan, 2015

I bought one of these HP-2 mufflers for my built up 2000 VW TDI (Turbo Diesel) MK IV. I installed it right at the bottom of the down pipe, Wonderful sound with no fart or annoying drone sound!!! I love Flowmaster products and this one dose not disappoint! Very compact with a fantastic look and great build quality to boot.FYI, Flowmaster told me you should have at least 14" of piping after the muffler for it to sound it's best.
Joseph Ferguson

13 Jan, 2015

This product arrived in timely fashion. Looked brand new out of the box. Sounds great on my truck!
Daniel P. Leek

12 Jan, 2015

Great and timely service. Happy with product as well.
AutoPartsWAY Customer

04 Jan, 2015

A great muffler it was just what I needed for my 2013 Jeep Wrangler. It is not too loud but loud enough so that an old man like me can hear the motor and I can tell when to shift gears.
Darryl Bizub

04 Jan, 2015

sounds nice
Loren K. Strodtman

16 Dec, 2014

I installed this on a 1995 Chevrolet Suburban K1500 with a stock TBI 350, and it went on with no issues. I've put 70 or so miles on it so far, both in town and on the highway. While this muffler is certainly louder than the library-quiet stock muffler, it's not 'loud' at all. I've had no drones or bad noises of any kind. The 3rd seat has been removed, and my second seat is folded down, so they aren't muffling the sound. While the price is a little steep, I'd put this on any V8 I own and be quite pleased. Doesn't sound bad in the parking garage, either.
Brian I.

12 Dec, 2014

nice rumble on my 1998 5.7 chevy k2500 but not loud but you can tell its got a performance muffler on it
Preston

08 Dec, 2014

Little quieter than I wanted but still made my 08 f150 with the 5.4 sound a little meaner while not being obnoxious. No drone on highway, sounds means and decently loud under load but won't attract too much unwanted attention
David W. Ulm

24 Nov, 2014

Much milder sound than I anticipated based on all the videos I researched and the Flowmaster web site. Better quieter than too loud. Good quality product that looks well made.
Trent Enu

23 Nov, 2014

Great sounding muffler. Yep it sounds like a flowmaster. Interior noise isn't that bad
Jeonpaolo Barvarz "JP"

11 Nov, 2014

Very easy to install. I positioned it the same way as my 2011 jeep wrangler stock muffler. It provides a nice sound that isn't loud or annoying and at the same time is strong and you can feel when you gas it. Did not decrease city gas mpg, and I haven't driven it on the highway to tell if mpg increased. I have it installed with spectre air intake and body throttle spacer. Definitely increase in HP, torque, and throttle response. Overall, good product for the price.
Patricia R.

04 Nov, 2014

Muffler sounds great, not too loud. Wanted to upgrade from standard muffler. Looks better and slimmer than stock muffler.
Daniel Hunt

11 Oct, 2014

Sounds great! I put I on my 2012 scion tc and it has a very nice tone. Plus this is the same muffler flowmaster uses on their 400$ axle back system. So with just a little welding an about 4-5 inches of extra piping I saved about 300$ going this route.
Nelson Vieira

02 Oct, 2014

EXCELLENT
Victor J. Danko

26 Sep, 2014

Installed muffler on a 2013 Silverado RC 1/2 ton pickup with a 4.8 V8 engine. After installation noticed an improvement in throttle response (low end) and gas mileage (2 MPG gain). The muffler does not drone at steady throttle, but, sounds great (IMO) when accelerating. Flowmaster "sound" compliments my 5/7 dropped truck.FWIW, muffler was welded into the existing OE exhaust tubing. Cut and welded on a quality rolled edge stainless steel exhaust tip.
That Guy (no, the other guy)

12 Sep, 2014

Installed on a 2013 Chevy 2500HD 6.0L long bed regular cab. The length, offset orientation, and inlet/outlet diameter are a prefect fit. 2500HDs will have some variance in the exhaust layout between cab/bed layouts, but this fit the 6.0L regular cab long bed perfect. 2011-2014 should all be the same. I cut about an inch in front of the muffler and about an inch and a half away from the rear hanger behind the muffler outlet. This muffler slid right over the stock exhaust pipes. This Flowmaster is a few inches longer than the stock one- which is good so it fits over the pipes. I used band clamps one both ends and got a nice tight seal. If you cut it right, you could easily have the stock muffler welded back in or possibly clamped back on with band clamps.The sound is good- keep in mind this is a 3-chamber Flowmaster, not a 2 chamber like the Super 40 or 44. If you want REALLY aggressive sound, get a 40 or 44 (or 10). Its definitely a 'muffled' sound- definitely some nice...
M. Watmore

11 Sep, 2014

I installed the 60 Series in a rear-mount configuration, in conjunction with a mid-mounted Flowmaster HP-2 on my 1987 Porsche 944S. The 944 has a relatively large-displacement 4 cylinder, so it produces a lot of the unpleasant raspy resonation associated with 4-bangers. The 60 Series by itself was not able to dampen the raspy sound, but the combination of the 60 series and the HP-2 works very well to do so.It is listed as having a mild to moderate sound with minimal interior resonation. I would classify it as a moderate sound with somewhat more than minimal interior resonation, though my 944 does not have much in the way of sound deadening insulation, either. It was slightly louder than I expected, but not obnoxious, and it produces a pleasing, mellow tone. More of a "European" sound than what you'd associate with your typical Japanese 4-cylinder, if that makes any sense, although it could also be due to the fact that I did install these mufflers on a European...
James Marshall "Florida Guy"

18 Aug, 2014

sounds perfect on my 2001 Tacoma. you cant even tell its a 3.4L ...sounds great..not ricey at ALL
C. Specker

18 Aug, 2014

Great muffler. Nice sound. Not to loud, not to quiet. Easy to install.
Alex

15 Aug, 2014

If you want to sound like a boss, buy this muffler now. If you don't want to sound like a boss, don't buy this muffler now.
timothy j. letchworth

15 Aug, 2014

No problems with installing flowmaster muffler on dodge one ton dullay
Mobius one

14 Aug, 2014

Installed on a Dodge Dakota 2002 4.7L quadcab. It sounds fantastic. Moderate interior noise while accelerating around 1500-2000 rpm. Which sounds so good its not loud just a good drone. Once up to speed 55mph you can hear it rumbling but not any louder then the wind noise. IMPORTANT Keep in mind this is not a direct fit you will have to have a 12" piece of pipe (2.5in I.D. on one end and 2.5in O.D. on the other end of said pipe.) My friend has a Dakota with a 5.2L with a SUPER 40 series which has almost no interior noise and not quite as loud at idle.
J. Wolfe

14 Aug, 2014

Awesome sound and performance, excellent build quality. Installed on 1978 F 150 4X4 with modified 300 straight six, really brings out the cam at idle, sounds like an exotic when on the pipe, absolutely love them.
David Crosby

04 Aug, 2014

It's honestly not what I was expecting but it's a good muffler. I have dualed 10s on a Ford F100 302 5.0. It's loud...... If I put it in the red it's like a dragster but basic around town not as aggressive as advertised.
Don Stanley

04 Aug, 2014

Fine product, little slow on shipping
Brian J Aldridge

01 Aug, 2014

I own a 1960 Pontiac Bonneville convertible. I chose the 50 series because I thought it would be quieter than the 40 series which is the classic loud Flowmaster muffler that most car guys know. This 50 series is quieter when idling and when cruising but when you hit the accelerator it roars nearly as loud as the 40 series. I am not talking about stomping the accelerator; I am talking about normal acceleration. This may be ideal for some but my car isn't really supposed to be that loud. I will probably drive around with this for a while but I will not be keeping these on the car in the long term.
Jason N.

26 Jul, 2014

Exactly what I was looking for!! I have a 2001 Chevy silverado 2500HD gas that I had this installed on and it's great! Not too loud inside the cab, no more drone to drive me insane! I had a dynamax on previously and it was terrible. Wish I would have went with my gut and bought the flowmaster to start!! It's sounds great. I wanted an exhaust that screamed when it should and then shut off on the highway and this is close to that as you can get!!
Jeff Smith

25 Jul, 2014

Sounds really nice and aggressive, I have an 07 Dodge ram 1500 3.7l V6 6-Speed, Out of all the other mufflers i have purchased from other stores, saying this will sound amazing. Nothing touches a 40 series flow-master. After putting this one on, and Dumping it, with the Catalytic converters pulled out. Sounds killer! Also get average 40-45 miles per gallon with a super awesome sound. (other mods on truck as well)A-lot of the mufflers i put on my truck before they still sounded like a rice burner, I kinda bought this with the same thought about the sound after 2500rpm, No it still sounded like a hoss.Oh yeah by the way, if AutoPartsWAY says does not fit, it does to fit, Just needs to be welded on.
Michael G.

07 Jun, 2014

Mike GI installed this on my 1995 Dodge 2500 4x4 to replace a stock muffler. MUCH Cheaper than a factory unit and the sound is great. I ended up getting a Magnaflow Universal tailpipe and a 18 inch piece of pipe to space it all out correctly. I have been running this for a year and still sounds good.
MICHAEL

03 Jun, 2014

Had this installed on a 2003 Honda Pilot. sounds great. Can't say for sure if it helped performance or not. I have gotten 23 mpg for the first time ever from this vehicle after muffler installation. Once again no way to know for sure if this is because of the muffler.
Pablo

22 May, 2014

Great mufflers easy to install and theses mufflers sound awesome .Second time I bought Flowmasters and I am very pleased with the sound
. "JustChillin"

16 May, 2014

They came in just like i remember my first set looking, and i installed them this past weekend. made an old inline 6 mud truck sound way better. they just have a unique sound. came quickly as well. Could have been packaged a little better, but they are heavy so that contributes to the boxes being in rougher shape. the mufflers looked great tho.