Hi guys, newbie here.
I own an EB S-XR6 which is totally standard apart from a 2 1/2 cat back exhaust. I am looking at buying some headers and am tossing up between the Pacemaker ph4499 and ph4480's. I am mainly after increase in low/midrange as I am not a speed freak on the open road. Basically I'm after improved throttle response on around town driving and overtaking. Recommendations anyone?
The 4499 is their standard header with 1 5/8" primaries so that would be the best one for you, and for most I6's. The 4480 is their competition series with 1 1/2" primaries so on fairly modified engines it will give you more up high but you will loose a fair bit down low.
The 4499 is their standard header with 1 5/8" primaries so that would be the best one for you, and for most I6's. The 4480 is their competition series with 1 1/2" primaries so on fairly modified engines it will give you more up high but you will loose a fair bit down low.
That's what I was thinking, however some muffler shops here tried to push the 4480 just because my car is an XR6. How does $420fitted sound? I was qouted from $520-$680 for the 4480's fitted!
Yeah those prices are about right. The headers on their own are about $350 for the 4499's and just over $400 for the 4480's. Anyway, I read the specs wrong, the competition 4480's actually have smaller primaries but from memory they, and the secondaries are much longer giving a wider power band, so they are probably going to be a better option
uh oh, confused now?? Are you now saying I'm better off getting the 4480's (competition ones)? Remembering my car rarely gets near redline.
Would both offer around the same fuel savings?
Make sure that whatever you get have 1 1/2" primaries, 1 5/8" primaries are to big and you will lose torque.
It's also worth looking at the JMM race series headers, though they are more expensive.
Rick.
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4L I6, naturally aspirated producing 173.5rwkw.
14.410 @ 96.49mph with street radials.
What's that?..... Did I hear you say TQE power?
but I've been told race series or tuned length headers are only good for mid- high end, is this true? If so, would it really be worth buying the JMM race series for a totally standard XR6 motor which mainly does city driving and the occasional highway cruise?
I have JMM race series on both my standard AU and my worked XH, the cars produce 120rwkw and 173rwkw respectively. They increased midrange urge on both cars considerably compared to standard and other extractors.
The JMM race series work on any engine, and IMO, are the best money can buy.
Rick.
__________________
4L I6, naturally aspirated producing 173.5rwkw.
14.410 @ 96.49mph with street radials.
What's that?..... Did I hear you say TQE power?
I have JMM race series on both my standard AU and my worked XH, the cars produce 120rwkw and 173rwkw respectively. They increased midrange urge on both cars considerably compared to standard and other extractors.
The JMM race series work on any engine, and IMO, are the best money can buy.
Rick.
these headers certainly sound like the ducks guts but by the time I add freight and fitting costs it don't look very cost effective unfortunately. Why are they so much? Surely they are produced by one of the major header manufacturers at a reduced cost to JMM. Sounds like someone has a huge profit margin.
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