Alright guys and gals, I got my F150 Ext. Cab 4X4 ORP 5.4 3.55ls about a month ago. I was wanting to put an aftermarket exhaust on, but I'm overwhelmed and confused as to which one. I plan on pulling a travel trailer so I don't want to lose any low end torque, does anyone have any recommendations? Also, will my warranty be voided by installing the cat-back and an FIPK?

 

Welcome aboard wemjr,

There are a lot of choices out there. If you are looking to avoid torque loss - keep the pipe diameter small (2.5" for dual outlets). My system is stock up to the Flowmaster 50-series Deltaflow and a single 3" pipe exiting in the stock location. Not too loud, no loss of low-end. Is there a speed shop that can help you out? They generally have the experience to put together a good system for ya.

Your warranty will be voided by the cat back and FIPK *ONLY IF* those modifications can be proven to have caused damage to other warranteed parts and systems. Do a search, both on these message boards and on the web, for the Magnusson-Moss Warranty Act for detailed information.

Good Luck and Happy (Exhaust) Hunting,
Tom in Tacoma

------------------
1998 F150 XLT S/C 4.6L Auto, 3.55LS, 4X2, Moonlight Blue, all the factory bells & whistles except for leather seats.

• Lund Deflector
• Lund Premier Tonneau Cover
• K&N Filter
• Body-color painted Throttle Cover
• Blue wire-looms
• Pentaliner S/R
• Window tint
• Ford side-steps
• Infiniti component speakers - front
• Polk Audio speakers - back
• Superchip (OH YEAH!!)
• Flowmaster 50 Series 'Delta-Flow' w/ 3" pipe
• Clear turn signal lenses
  
• Next up - billet grill.

Tom in Tacoma

(Washington not Toyota)
Go check out http://communities.msn.com/SS97FordsPics for the second best website for F150's

 

There are many good exhaust suggestions on this site. My personal preference=Dynomax exhaust ( as you've probably seen elsewhere ). About FIPK's: they won't void the warranty, but the only 50-state CARB legal system is the K&N (not the AirAid or WMS). This can become relevant at inspections.

------------------
2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
4-wheel disc/ABS,Chestnut/Parchment,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.

 

Sorry, I forgot to welcome you to F-150 online. You will find the folks here to be friendly, helpful, and informed.

------------------
2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
4-wheel disc/ABS,Chestnut/Parchment,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.

 

wemjr

take a look at Jardine, A lot of people swear by them, and say they are the best for towing.
http://www.jardineproducts.com/automotive/index.htm

------------------
1999 F150 4x4 4.6V8 regcab/shortbed
Oxford White with Wedgewood Blue two tone, with Blue Captains chairs
Bassani Cat Back, Superchip,WMS Velocity Tube with modified K&N filter.
Centerline Saber rims 17x8" with Firestone GTA 275/60hr-17 tires.






[This message has been edited by Don C (edited 06-06-2000).]

 

Thanks for the help guys! The one reputable speed shop in town closed so that's why I was asking for help. I'll probably do the FIPK first then do the cat-back. I went to the Dynomax website but I didn't see any cat-back "systems" only mufflers. Around here everybody has flowmasters, but I haven't heard an F-150 with them.

 

At Dynomax's website if you look close there is a place to click for "mufflers" and a different click place for "systems". a-1performance.com has discriptions of system types/components/and flow rates.

------------------
2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
4-wheel disc/ABS,Chestnut/Parchment,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.