NO, I don't see how it could. Anyone else know?

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2000 F-150, XLT, SPORT 4X4, BRIGHT RED/DARK GRAPHITE, SUPER CAB,
SHORT BED, 5.4L, AUTO, 3:55LS, TOW PACKAGE, HD COOLING/ELECT, SKID PLATES
SPORT CLOTH SIX WAY POWER CAPTAIN'S CHAIRS, CONSOLE, SINGLE CD,
CRUISE,ESOF,REMOTE KEYLESS, FORD SNAPLESS TONNEAU COVER, FORD BEDLINER,
FORD MOLDED SPLASH GUARDS, FORD BODY COLOR CABSTEPS,
MODS: CATCH ALL FRONT MATS, LUND DEFLECTOR, FORD VENT SHADES,
GIBSON SWEPTSIDE CATBACK,
K&N GENII FIPK,
FORD HITCH COVER

NEXT: SUPERCHIP!!

 

It would probably void the warranty on everything from there on back no doubt but I don't see how it could void anything else. According to Magneson Moss they would have to prove that it was the cause of whatever your trying to have fixed. Shouldn't affect the Cats, O2's, nothing like that. I would suspect though that if you developed an exhaust leak at a header or something it might be a tough argument. They could say the mods were not done properly and stressed the headers etc. Just speculation on my part though.

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- 2001 F150 Harley Davidson Special
- 1993 Mazda Miata, wifes car
- 1994 Harley Davidson Heritage
- 1976 Honda CB750K, Original
- 1965 Honda 305 Dream, Original
- 1971 Triumph Trophy 650, Original
- 1971 Norton Commando
- 1970 Honda Trail 90, Original
- Yamaha 500 Short Tracker, racing #69
- 1984 Yamaha Virago 1000, wifes bike
- 1981 Honda Passport 70, wifes bike
- My on-line album
- My Webpage

 

I stopped by the ford dealer today and asked them. they said that the entire piece (y-pipe cats, censors) is one uniform piece. you have to cut part of it out to replace the Y. He said that by doing this you void your drivetrain warranty (including the engine)! I just got my Flowmaster 3" exhaust installed this afternoon and did not replace the Y pipe. My truck is 3 weeks old and i cant void the warranty yet... maybe in 36k. I dont notice any significant low end loss... at least not enough to void anything.

 

It cancels the warranty on the replaced/modified part, which is the segment of pipe from the exhaust manifold to the first segment behind the original Y-pipe. They would have to "prove" the part did damage to refuse warranty work. However, it is against Federal emissions law to do.

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2000 F-150 XL, RC, LB, 5.4L, 4R70W, 4.10LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Pirelli Scorpion Zero 275/60/16s, Mobil 1, K&N oil filter.

 

I was told that replacing the Y-Pipe will void your warranty. Is this true?

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2001 F-150 Super Cab 5.4L 2WD 3.55LS
Black / Dark Graphite Interior
[*] 6" RCD Lift[*] Weld Outback 16X8.25 Wheels[*] BFG MT 35's[*] Billet Grill[*] LineX Bedliner[*] Leather Seats[*] Tow Package[*] Captains Chairs

Coming Attractions:
[*] Exhaust (FM or Gibson)[*] Tint[*] Stereo System

Will Post Pictures When Done!

 

When the dealers tell you "putting that sticker on your back window will void the powertrain warranty", about 50% of people give up on all their projects and ideas right there.

When the dealer says, "adding that bug deflector caused your rear axle to blow a seal - it is therefore not covered under warranty", another 50% of the people will take that at face value and pay for the repairs out of pocket.

You just have to use common sense and be aware that the dealer is always looking out for their own best interests. You can do a LOT of mods to a vehicle before the dealer can rightfully say the warranty is void.

Changing the exhaust after the cats and O2 sensors is pretty harmless and any sensible dealer would probably agree that the rattle in your dash or that leaky door seal that you are having fixed under warranty is probably not caused by your new 3" exhaust tip. Lighten up people!

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2000 F150 XLT Supercab Flareside
5.4L 4x4 with 3.55 L/S + ORP
Mods: Superchip, Airaid, Flowmaster Force II, Scorpion Spray in Liner, fogs + hibeams
Billet 5.4L Badge on Tailgate
Soon: Flowmaster Y-Pipe

 

If you replace something that is BEHIND the downstream 02 sensors, how can it possibly void the warranty? A tecnician will say anything to move a job from warranty to customer pay, because he makes more money. There is no way a job like that would void a warranty, unless the emission system was messed with. Come on folks, use some common sense here.

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1997 F150 reg cab, flareside
4.6 5spd 2wd 3.08
Steeda pulleys
Jacobs DIS
Accel coil packs
K&N FIPK
Airaid poweraid
MSD wires
Superchip
Dyna Glass cover
Center Line Cobra wheels
GoodYear 275/60/R17 tires on front, new 285/65/R17 on rear
Dark Toreador Red
Cordovan Interior
Alpine AM/FM/CD
Love My Truck
Next Mod: Electric fan