Okay I have been reading all these posts about the Y pipe and some people mentioned running duals with the X pipe or the H pipe. Is there a difference in what these two do or do they give the same performance results (low end torque). Thanks in advance for any clarification.

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2001 F150 Sport supercab 4x4, 5.4L, Silver w/ grey interior, tow package, heavy payload package, Sportmaster tonneau, Linex spray in bedliner

 

I think the x-pipe gives more low end and the h-pipe gives more top end. I'm sure someone else will be along shortly to verify that.

 

I think you're right. As soon as I can figure this out 100%, I'll be putting one on my setup. I know that I've already gained on the high end, so when I get the low end back + the extra, I'll finally get what I was after in the first place. Now, if I could just find some extra money to change my gears....


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Black 98 F150-XL, 2WD, 4.6L Slappin Windsor Triton, 5spd.,
RegCab, Short WB, 3.08 rear, Air, Rear Slider, FM40 True Duals
Triton V8 Badges, Duraliner Bedliner, K&N, Ziebart, Castrol Syntec
HAWK Plus Bedcap, profile+ wrap-around bug deflector,
Blazer Neon-Blue projector fogs, custom look'n door cracks
Tinting: #4 RearCab & Bedcap Windows, #2 Cabside Windows

My Site

 

Sprintsrule:

Thanks for the info; that's kinda what I figured. I wonder, when you gain one, do you loose the other? i.e. if I go ahead and put on an X and get back my tiny loss of torque (and gain some), will I loose the high end gain I got with the Flow Masters again? BTW, welcome to the site.



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Black 98 F150-XL, 2WD, 4.6L Slappin Windsor Triton, 5spd.,
RegCab, Short WB, 3.08 rear, Air, Rear Slider, FM40 True Duals
Triton V8 Badges, Duraliner Bedliner, K&N, Ziebart, Castrol Syntec
HAWK Plus Bedcap, profile+ wrap-around bug deflector,
Blazer Neon-Blue projector fogs, custom look'n door cracks
Tinting: #4 RearCab & Bedcap Windows, #2 Cabside Windows

My Site

 

The "X" pipe increases torque. A performance muffler increases top end due to increased exhaust flow. The best I have found are available at this website: http://www.spintechmufflers.com