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Old 02-12-2014, 09:38 AM   #1
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Pacesetters Headers

Hey guys...need some advice real quick. I was planning on putting in exhaust headers for better performance. Without much research I purchased Pacesetters. Now im reading the reviews and so far not good. Should I send it back? If so...what do you recommend for my yj 4 banger? Warranty? Im in cali so have to be compliant. The pacestters cost about 325.

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Old 02-12-2014, 09:56 AM   #2
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do'nt know what negative stuff you've read about them but I put some on my 4popper last yr. Have had 0 issues.Everything bolted in ,they give you the new washers for the manifold,the tube bolted into the cat.Curious what you learned through your resarch?...russ

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Old 02-12-2014, 10:11 AM   #3
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I have a 4.2L instead of the 2.5L but the reason that I never installed my pacesetter header was that after it was here, and I held it in place, it was dangerously close to my front driveshaft.

So, I ended up sending it back, and went with a custom down pipe from the manifold to the cat.
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Old 02-12-2014, 11:43 AM   #4
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I heard they sometimes crack...paint peels off...sound is bad. Still waiting on suggestions for a better one
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Old 02-12-2014, 03:00 PM   #5
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had a pacesetter on my former 97 tj. The only issue I had was they sent a regular gasket instead of a high temp header gasket, so be sure to order one of those. Other than that it was great
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Old 02-13-2014, 09:57 AM   #6
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I have pacesetter long tubes on my 01 Ram and they have been great. Any painted header is going to peel at some point so i would not worry about that. If you can afford to get the ceramic coated. Bad sounding is due to muffler not the header.
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Old 02-13-2014, 10:06 AM   #7
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Yes the headers are ceramic so im good there. What type of performance can I expect out of the headers? Is it even worth it with only a 4 banger?
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Old 02-13-2014, 10:58 AM   #8
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Anytime you open up the exhaust so it can "breathe" easier, helps. But are you going to feel a difference? No. Just a different tone in the exhaust.

A 2.5L only makes so much horsepower, without changing the horsepower somehow in a major way, you will not feel the performance.

If you were to add a bunch of different mods at one time, it might feel a little more peppy. Such as 4.0 throttle body, 19lb injectors, electric fan kit, header, power pulleys, and such are all good mods for the 2.5L, but doing 1 at a time will make virtually no change in performance at all.
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Old 02-13-2014, 11:14 AM   #9
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So you're saying I'm wasting my money?
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Old 02-13-2014, 11:19 AM   #10
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No i'm not, to each his own. If you want headers, put them on.

I am just giving you realistic facts.

If you think that putting a header on a 4cyl is going to give you the performance of a 4.0L, you are barking up the wrong tree. Like I said before, it helps, but it isn't a drastic change like so many people that are on here think will happen.
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Old 02-13-2014, 07:30 PM   #11
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The biggest effect that I have felt on all the jeeps and trucks I have installed headers is the engine pulls revs faster.
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Old 02-13-2014, 07:41 PM   #12
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Back from the Dyno-160 cu-in (2.6L) AMC 4 Cylinder - JeepForum.com

This might help....

Long story short even with ported heads and a little boring, the headers added about 2-3 hp.
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Old 02-13-2014, 08:57 PM   #13
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I have a 4.2L instead of the 2.5L but the reason that I never installed my pacesetter header was that after it was here, and I held it in place, it was dangerously close to my front driveshaft.
That is why you modify the downpipe around the front of the oil pan (at least on the 4.0L this is an option), like on the TJs...

I just bought a 93 YJ with the 4.0L, it had the pacesetter header on it already, it had been on there for a while, and yes, the paint has worn off, this is normal.
I have no manifold leaks, its not cracked anywhere, and sounds AWESOME with a Flowmaster 2 chamber.

NOTE: if you install the Barnes skidplate, you will have to RAISE the exhaust to clear it, this slightly modifies the Pacesetter kit, but is not an issue.

And since you are in Cali, its not an issue, I am THE smog guy that fails stuff for this reason, and I dont fail stuff like this, its part of the kit. of course mine was a full cat-forward kit as far as I can tell.
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Old 02-13-2014, 10:40 PM   #14
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I'm sure most of the bad reviews are due to piss poor installation. Use a high quality gasket & you'll have no leaks. As for cracks, it's a crap shoot. I have yet to see anyone one here report cracking with the 4 banger header. I had a $600 set of TTI headers on my Duster that cracked 4 months after install.

I highly recommend RemFlex gaskets. I've been using them for years & NEVER had a leak.

http://catalog.remflex.com/JEEP_Head...t_p/10-002.htm
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Old 02-13-2014, 10:48 PM   #15
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Alot of people buy a CAI or a high flow cat and expect their vehicle to sudden morph into a sports car, when it doesn't they get pissed and tell everyone else not to waste their money.

The bottom line is to go in with realistic expectations and decide how much money a little bit of extra airflow is really worth to you.

Also this said, a high flow intake, high flow headers, high flow cat, high flowmuffler, and highflow tailpipe; combined with a valve job and maybe a cam swap will make a big difference. But now we are talking about some serious money
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Old 02-13-2014, 10:52 PM   #16
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Since I'm dealing with a 2.5 liter, is it even worth it to put a header on? A 2% to 3% gain is not worth a $310 header.
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Old 02-13-2014, 10:58 PM   #17
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Quote:
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Since I'm dealing with a 2.5 liter, is it even worth it to put a header on? A 2% to 3% gain is not worth a $310 header.
it depends, how much do you like money? lol honestly unless you have plans to turn you're 4 banger into a turbo'ed 4 cylinder race engine like an MR2 i'd say refund (and if you need to change you're manifold like i do, cracked, just go with an oem one it's much cheaper)
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Old 02-13-2014, 10:59 PM   #18
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Since I'm dealing with a 2.5 liter, is it even worth it to put a header on? A 2% to 3% gain is not worth a $310 header.
it depends on how much you want to spend for that extra 2-3 HP...
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Old 02-13-2014, 11:19 PM   #19
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I feel like kicking myself for getting the 2.5 liter. Big mistake.
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Old 02-14-2014, 12:20 AM   #20
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I got my pacesetters for my 4.2 yj off of a 4.2 Cherokee I found in a upull. I heard the paint problem and sanded em down then used a header paint. They've stayed painted and have been on for 2 years no problem. The whole cracking issue I've seen was due to them having that header wrap crap on them. The header wrap shouldn't really be used on something that collects water mud and grime. When they get dirty/muddy clean em off before everything cakes on and they should be fine.
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Old 02-14-2014, 01:52 AM   #21
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I feel like kicking myself for getting the 2.5 liter. Big mistake.
Dont! Just accept that u dont drive a rig with alot of power and enjoy the slow ride through life! Sometimes it is more enjoyable that way... Or get something else with alot more power lol

Me and my better half swap vehicles on a weekly basis, her truck is a 2nd gen nissan xterra and god do i love that truck, 260ish horses and it cruises smoother than most of the cars ive ever driven
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Old 02-14-2014, 02:42 AM   #22
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I got my pacesetters for my 4.2 yj off of a 4.2 Cherokee I found in a upull. I heard the paint problem and sanded em down then used a header paint. They've stayed painted and have been on for 2 years no problem. The whole cracking issue I've seen was due to them having that header wrap crap on them. The header wrap shouldn't really be used on something that collects water mud and grime. When they get dirty/muddy clean em off before everything cakes on and they should be fine.
The Cherokee was never offered with the 4.2L on the 2.5,2.8,4.0 renix, 4.0ho .
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Old 02-14-2014, 03:00 AM   #23
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The Cherokee was never offered with the 4.2L on the 2.5,2.8,4.0 renix, 4.0ho .
Yeah I know, like I said I found one in a junkyard. It was a 92 Cherokee with a 4.2l swap also had a np231 tcase bolted to a ba-10 tranny. The np231 is now under my 87 yj
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Old 02-14-2014, 05:40 AM   #24
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The 2.5's aren't a ball of fire, they do get the job done though. My '92 2.5 is definitely not the '82 Scrambler I had with an AMC 401 from a Wagoneer. If you really want the power and aren't afraid to spend. Then remember the old saying, there's no replacement for displacement.
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Old 02-14-2014, 06:52 AM   #25
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I love my little 4 banger. Reliable, plenty of torque. Yeah she's slow, but it's a jeep. I put borla headers on mine and I did notice that she revs a little nicer. That along with 4.0 tb, ford injectors. Next project is a screamin demon coil and what not.
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Old 02-14-2014, 10:05 AM   #26
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What seems to be the problem with your 2.5? I ran 70 mph to work this morning with 31" tires. How much faster do you need to go!?
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Old 02-14-2014, 11:46 AM   #27
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I also have an anemic 2.5 with 31's. Only way I can do 70 is going downhill with the wind at my back. She's a turd. From everything I've read, a gear swap to 4.88's is the best way to go.
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Old 02-14-2014, 12:43 PM   #28
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I also have an anemic 2.5 with 31's. Only way I can do 70 is going downhill with the wind at my back. She's a turd. From everything I've read, a gear swap to 4.88's is the best way to go.
Sounds like u have a problem... My 2.5 can hold its own UPhill at 80... Not that it likes it tho. Granted i have stock size tires but the jump to 31's shouldnt make THAT much of a difference
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Old 02-14-2014, 12:57 PM   #29
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It was a real pos when I got it but priced right. Tuned up but still not a powerhouse by any means. It feels like it WANTS to go faster like timing is retarded but need to figure out how to advance it more.
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Old 02-15-2014, 08:29 AM   #30
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Hey guys..I have come to conclusion that installing headers would be a waste of time. My 2.5L is what it is. I can live with it because I didn't buy it for speed. BUT...one of these days (save the money up or win the lotto) I'll swap it with a 350. Until then...thanks for all your inputs. As I have always said, if you can't find the answer on this forum, it doesn't exist. You guys are greatly appreciated.

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