buying headers should i go with 1 or 2 cats - Hemi Truck Club
 
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Old 07-29-2011, 01:49 AM   #1
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Im getting pacesetters lt with the pacesetters y pipe I'm curious if i should go with 2 cats between y pipe and headers or 1 just like my stock one is at the end of the stock y pipe.

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2003 Dodge Ram 1500 Hemi. A few mods... 3865 Superchip 91 tune. 8.2 Taylor shorties. NGK 5306. Stock 3.92 gears. Falken tires on stock 20's. K&N FIPK Intake. American Thunder DOSS Exhaust. Sonnaxx. A/F ratio gauge. Srt10 gauge cluster Pillar. Pacesetter Lt's and y pipe. Magnaflow Cats. 1/4 mile 14.340 1/8 9.102 times for right now :). Lot more to come!!!

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Old 07-29-2011, 01:49 AM   #2
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Im getting pacesetters lt with the pacesetters y pipe I'm curious if i should go with 2 cats between y pipe and headers or 1 just like my stock one is at the end of the stock y pipe.
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2003 Dodge Ram 1500 Hemi. A few mods... 3865 Superchip 91 tune. 8.2 Taylor shorties. NGK 5306. Stock 3.92 gears. Falken tires on stock 20's. K&N FIPK Intake. American Thunder DOSS Exhaust. Sonnaxx. A/F ratio gauge. Srt10 gauge cluster Pillar. Pacesetter Lt's and y pipe. Magnaflow Cats. 1/4 mile 14.340 1/8 9.102 times for right now :). Lot more to come!!!

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Old 07-29-2011, 06:04 AM   #3
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just 1, if you decide to keep it at all.
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Old 09-30-2011, 01:53 AM   #4
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I have run both ways, and prefer two cats. With a RCSB it gets a little tight for space. Using Pacesetter LT's, I mounted the Magnaflow spun cats just behind the collectors, pretty much over the cross member. Used the 3" Pacesetter Y pipe behind the cross member and then 3" single back to a Magnaflow 30" can with double outlets run back and drop just in front of the roll pan. I also thought about mounting a Borla crossflow muffler where my spare use to be mounted. It would move wieght rearward and open up some room under the truck. However, I finally decided to keep it with the traditional mounting locations.

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Old 09-30-2011, 03:57 AM   #5
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Thanks I been waiting on a answer on this for a while i kinda waiting on getting headers now i'm having electrical problems with the truck at the moment goin to the shop monday but when i go home i might go head n purchase some. Have you had problems with o2 fails ?
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2003 Dodge Ram 1500 Hemi. A few mods... 3865 Superchip 91 tune. 8.2 Taylor shorties. NGK 5306. Stock 3.92 gears. Falken tires on stock 20's. K&N FIPK Intake. American Thunder DOSS Exhaust. Sonnaxx. A/F ratio gauge. Srt10 gauge cluster Pillar. Pacesetter Lt's and y pipe. Magnaflow Cats. 1/4 mile 14.340 1/8 9.102 times for right now :). Lot more to come!!!

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Old 09-30-2011, 06:51 AM   #6
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I have had no o2 problems. The up stream o2 sensor is mounted in the passenger side collector and the down stream o2 is mounted in the driver side part of the Y pipe. My wideband o2 sensor is mounted in the driver side collector.
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2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1956 Jeep Willys Pickup Hemi powered "Street Rod project"

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

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Old 10-08-2011, 09:00 AM   #7
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So I just bought the headers and cat. I'm curious did you have to use o2 extenders with the pacesetter Lt?!
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2003 Dodge Ram 1500 Hemi. A few mods... 3865 Superchip 91 tune. 8.2 Taylor shorties. NGK 5306. Stock 3.92 gears. Falken tires on stock 20's. K&N FIPK Intake. American Thunder DOSS Exhaust. Sonnaxx. A/F ratio gauge. Srt10 gauge cluster Pillar. Pacesetter Lt's and y pipe. Magnaflow Cats. 1/4 mile 14.340 1/8 9.102 times for right now :). Lot more to come!!!

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Old 10-08-2011, 03:53 PM   #8
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I didn't have too. If you cut the wire loom loose, you can move them around a good deal.
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2003 RCSB, 2wd, "Pro-Street"
6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1956 Jeep Willys Pickup Hemi powered "Street Rod project"

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

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Old 10-08-2011, 04:14 PM   #9
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Thanks good info.
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2003 Dodge Ram 1500 Hemi. A few mods... 3865 Superchip 91 tune. 8.2 Taylor shorties. NGK 5306. Stock 3.92 gears. Falken tires on stock 20's. K&N FIPK Intake. American Thunder DOSS Exhaust. Sonnaxx. A/F ratio gauge. Srt10 gauge cluster Pillar. Pacesetter Lt's and y pipe. Magnaflow Cats. 1/4 mile 14.340 1/8 9.102 times for right now :). Lot more to come!!!

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Old 10-08-2011, 05:50 PM   #10
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Here is a post from MrHemi that was posted some time ago. I used it as a guide to figure out my own plan. Thank you MrHemi, I hope you don't mind me posting it.

http://www.hemitruckclub.com/headers.htm
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6.4L/cog driven V7-Ysi/46rh trans/HTH Truckarm coilover suspension. HP Tuning...

1956 Jeep Willys Pickup Hemi powered "Street Rod project"

1# 2017 HTC FASTEST HEMI List....
Current 1/4 mile [email protected] (2018)
Current 60' PB 1.351 (2019) mechanical issue for 1/4m

HTC 2018 TOTY

Support vehicle- 2007 QC G56 4x4 diesel
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