Y-Pipe questions?????????
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Senior Member
Joined: Apr 2000
Posts: 499
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From: Westlake Hills in Austin, Texas, USA
Y-Pipe questions?????????
well after reading all of the posts talking about Y pipes i decided to crawl under my truck and see what mine looked like... WoW that thing looks horrible!!!!! Also one question that i have for you not-it-alls out there is is it worth it to change the Y pipe on my 4.2l v6 f150????? And if i do change it will i notice any change in tone or loudness of my exhaust( Im running a FM-40 Si/Do)????? Also Does anyone know of any ways i can foool the o2 sensor so that i can remove the last two cats????
thanks
JDm
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1999 F150 REG.CAB BLACK 2WD SPORT 4.2 LITER V6
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My Movie is at http://albums.photopoint.com/j/MM?u=...7-970543941002
JDm02@excite.com
Familys list of cars
thanks
JDm
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1999 F150 REG.CAB BLACK 2WD SPORT 4.2 LITER V6
- FLOWMASTER SERIES 40 DUAL EXHUAST
- K&N Filter Injection Performance Kit
- MANIKS GRILLE GUARD
- PIONEER DEH-P4000 CD PLAYER
- 4 PIONEER 3WAY SPEAKERS
- MTX THUNDERFORM SUBWOOFER BOX
- 2 10 INCH MTX THUNDER6000 SUBWOOFER
- Kenwood 818 mono-subwoofer AMPLIFIER
- WET OKOLE black and charcoal seat covers
- SPIDERGEAR BED WEB
- PROCOMP HEADLIGHT & TAILLIGHT BLACKOUTS
- 1.75 INCH COIL SPACERS(gave me about 2 inches of overall lift).
- 3 INCH BODY LIFT
- 3.5 inch Fabtech Spindles with 2inch rear blocks
- 33x12.50R16(305/70r16) PROCOMP MUDDERS
- 16x8 AMERICAN RACING BAJA RIMS
- RAM AIR(home made)
- HELLWIG REAR ANTI-SWAYBAR
- ENERGY SUSPENSION FRONT ANTI-SWAY BAR BUSHINGS
- Cobra 9200 Radar detector
- Pro Rally Projecter beam Lights
- Performance 55 watt Back-up lights
- Performance Window Tint 25%in front and 5% in rear
- 4 100w stainless KC-Hilites
- Clear Corners
- Altezza Euro Tail-lights
- Superwhite headlights and corner lights
- Wishlist-Superchip, Powertrax locker, 36x12.50 Super Swamper TSL radials,1inch addaleafs, and more KC Daylighters
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My Movie is at http://albums.photopoint.com/j/MM?u=...7-970543941002
JDm02@excite.com
Familys list of cars
- Y2K Chevy Corvette(355hp)
- Y2K Explorer Sport(215hp)
- 99 F150 XL Sport(230hp)
- 97 Expedition XLT(220hp)
- 93 SHO(225hp)
Senior Member
Joined: Dec 2000
Posts: 724
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From: EL Sobrante, CA ,
Hi JDm
Changing the Y pipe is one of the best things you can do to your truck (in my opinion). I also have a flowmaster 40 series si/do, i had 3" pipe added from the Y back to the muffler, it gave the exhaust a deeper sound,i also picked up a noticable amount low and mid range power, as well as better gas mileage.
I hope this helps.
Larry.
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2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
Changing the Y pipe is one of the best things you can do to your truck (in my opinion). I also have a flowmaster 40 series si/do, i had 3" pipe added from the Y back to the muffler, it gave the exhaust a deeper sound,i also picked up a noticable amount low and mid range power, as well as better gas mileage.
I hope this helps.
Larry.
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2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
Junior Member
Joined: Jun 2001
Posts: 7
Likes: 0
From: Oakley, CA USA
<font face="Verdana, Arial" size="2">Originally posted by speeder:
Hi JDm
Changing the Y pipe is one of the best things you can do to your truck (in my opinion). I also have a flowmaster 40 series si/do, i had 3" pipe added from the Y back to the muffler, it gave the exhaust a deeper sound,i also picked up a noticable amount low and mid range power, as well as better gas mileage.
I hope this helps.
Larry.
</font>
Hi JDm
Changing the Y pipe is one of the best things you can do to your truck (in my opinion). I also have a flowmaster 40 series si/do, i had 3" pipe added from the Y back to the muffler, it gave the exhaust a deeper sound,i also picked up a noticable amount low and mid range power, as well as better gas mileage.
I hope this helps.
Larry.
</font>
This section of plumbing on my truck appears to be 1/4-1/2" smaller then the 3" FM I did (SI/DO).
Who did you have do this work? What did it cost with the purchase of the Y from FM?
Thanks very much for your help. We both are in the Bay Area and I am also having trouble finding someone who can/will do this.
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Senior Member
Joined: Dec 2000
Posts: 724
Likes: 0
From: EL Sobrante, CA ,
Hi JDm
I had a local muffler shop install my Y pipe.
They charged me 50 dollars to install the y and run the 3" pipe back to the muffler, the instalation took about an hour.
Hope this helps.
Larry.
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2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
I had a local muffler shop install my Y pipe.
They charged me 50 dollars to install the y and run the 3" pipe back to the muffler, the instalation took about an hour.
Hope this helps.
Larry.
------------------
2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
Junior Member
Joined: Jun 2001
Posts: 7
Likes: 0
From: Oakley, CA USA
I had a local muffler shop install my Y pipe.
They charged me 50 dollars to install the y and run the 3" pipe back to the muffler, the instalation took about an hour.
Hope this helps.
Larry.
Hey Larry:
This is Pete N - I need some more info on the Y pipe.
Location (is it the section approx. 3' before the input to the muffler)?
What was the name of the muffler shop which did the work - I work over near the East Bay and could probably get in there.
Any help here?
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They charged me 50 dollars to install the y and run the 3" pipe back to the muffler, the instalation took about an hour.
Hope this helps.
Larry.
Hey Larry:
This is Pete N - I need some more info on the Y pipe.
Location (is it the section approx. 3' before the input to the muffler)?
What was the name of the muffler shop which did the work - I work over near the East Bay and could probably get in there.
Any help here?
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Senior Member
Joined: May 2000
Posts: 4,761
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If they tell you it looks complex, run and find a qualified person. 
I paid $50 and took them a mandrel bent 90 degree pipe for the driver's side pipe modification.
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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 paid $50 and took them a mandrel bent 90 degree pipe for the driver's side pipe modification.------------------
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.
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Senior Member
Joined: Dec 2000
Posts: 724
Likes: 0
From: EL Sobrante, CA ,
Hi Pete N
The y is were the left exhaust pipe is joined to the right exhaust pipe, the exhaust pipe comming from the left side is reduced down from 2.50 to 2.25 inches before it is welded together at the y, but the hole in the right side pipe is only 1.75" inches around. So you have a 2.50 pipe reduced down to 2.25 that is welded over a 1.75 inch hole,
Thats why the Y pipe is such a restriction and needs to be replaced. Once you have yours replaced, look at the old y and you will see what im talking about.
Ihope this helps.
Larry.
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2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
The y is were the left exhaust pipe is joined to the right exhaust pipe, the exhaust pipe comming from the left side is reduced down from 2.50 to 2.25 inches before it is welded together at the y, but the hole in the right side pipe is only 1.75" inches around. So you have a 2.50 pipe reduced down to 2.25 that is welded over a 1.75 inch hole,
Thats why the Y pipe is such a restriction and needs to be replaced. Once you have yours replaced, look at the old y and you will see what im talking about.
Ihope this helps.
Larry.
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2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
Senior Member
Joined: Jul 2000
Posts: 5,116
Likes: 3
From: Houston, by way of every major city in America.
You can also do away with the Y pipe altogether like I did. 
,,,,98
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98 F-150 4.6 Litre XLT 4x2 Ext. cab
prarie tan/tan int.
Yep,it has alot of stuff installed on it,I just got sick of lugging that huge sig. around,hehe
Come and see my newest pictures@ www.my-f150.com
Everything is shown there,except for the Superchip,Thanks Mike T!!
FENDER GUITARS ROCK!!!
Now,if it only looked like this in real life
,,,,98------------------
98 F-150 4.6 Litre XLT 4x2 Ext. cab
prarie tan/tan int.
Yep,it has alot of stuff installed on it,I just got sick of lugging that huge sig. around,hehe
Come and see my newest pictures@ www.my-f150.com
Everything is shown there,except for the Superchip,Thanks Mike T!!
FENDER GUITARS ROCK!!!
Now,if it only looked like this in real life
Senior Member
Joined: Dec 2000
Posts: 724
Likes: 0
From: EL Sobrante, CA ,
Pete N
The name of the muffler shop that installed my Y pipe is MEL&SONS 12432 San Pablo AVE Richmond, Phone# 510-233-8484. They do good work.
Larry.
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2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
The name of the muffler shop that installed my Y pipe is MEL&SONS 12432 San Pablo AVE Richmond, Phone# 510-233-8484. They do good work.
Larry.
------------------
2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
Junior Member
Joined: Jun 2001
Posts: 7
Likes: 0
From: Oakley, CA USA
[QUOTE]Originally posted by speeder:
[B]Hi Pete N
The y is were the left exhaust pipe is joined to the right exhaust pipe, the exhaust pipe comming from the left side is reduced down from 2.50 to 2.25 inches before it is welded together at the y, but the hole in the right side pipe is only 1.75" inches around. So you have a 2.50 pipe reduced down to 2.25 that is welded over a 1.75 inch hole,
Thats why the Y pipe is such a restriction and needs to be replaced. Once you have yours replaced, look at the old y and you will see what im talking about.
Ihope this helps.
Larry.
Thanks again for the feedback. You dont happen to have any pictures showing this do you? My '97 has a cat on the right (closer to the engine) (fed via the right side manifold) and a cat on the left closer to the middle of the truck. There is what I would describe as an H pipe which leaves the first cat and goes into the second. There is a single output from the second cat straight into (about 3' away) the input to the muffle. I cant see where the Flowmaster Y pipe would fit in this configuration. Matter of fact, I dont see where it goes at all.
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[B]Hi Pete N
The y is were the left exhaust pipe is joined to the right exhaust pipe, the exhaust pipe comming from the left side is reduced down from 2.50 to 2.25 inches before it is welded together at the y, but the hole in the right side pipe is only 1.75" inches around. So you have a 2.50 pipe reduced down to 2.25 that is welded over a 1.75 inch hole,
Thats why the Y pipe is such a restriction and needs to be replaced. Once you have yours replaced, look at the old y and you will see what im talking about.
Ihope this helps.
Larry.
Thanks again for the feedback. You dont happen to have any pictures showing this do you? My '97 has a cat on the right (closer to the engine) (fed via the right side manifold) and a cat on the left closer to the middle of the truck. There is what I would describe as an H pipe which leaves the first cat and goes into the second. There is a single output from the second cat straight into (about 3' away) the input to the muffle. I cant see where the Flowmaster Y pipe would fit in this configuration. Matter of fact, I dont see where it goes at all.
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Senior Member
Joined: Dec 2000
Posts: 724
Likes: 0
From: EL Sobrante, CA ,
Pete N
I don`t know how to discribe it any better,
the Y is were both pipes are welded together.
There is a picture in this post, go to this thread by Jackal--need y pipe advice ASAP there is a picture of the new y pipe, this picture might help you, or give you an idea as to were it goes.
I hope this help .
Larry.
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2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
I don`t know how to discribe it any better,
the Y is were both pipes are welded together.
There is a picture in this post, go to this thread by Jackal--need y pipe advice ASAP there is a picture of the new y pipe, this picture might help you, or give you an idea as to were it goes.
I hope this help .
Larry.
------------------
2001 F150 supercab short bed. Modifications so far, k/n fipk, 40 series flowmaster, flowmaster Y collector, electric cooling fans, Bauman shift kit, underdrive pulleys, with more to come.
