4-2-1 vs 4-1 header
#4
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That's about right. There are several new ones out that are made in China so the cost is way down. New for less than $600. Keep an eye out for Berks with the larger primaries. Also check out Rick's and Megan Racing. Used is another way to get a good deal.
#6
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Hi,
Difference is that the stock 4-2-1 is restricted.
I run with Rick's manifold, which is identical to Mugen manifold, complete with a Mugen exhaust system.
This setup help my mid range power quite noticable.
But if you need top end power, go for something like Spoon.
I also remove the cat, and replaced it with a megan de-cat, this helped a lot aswell, and its a cheap mod to start with.
P.S. If your are not upgrading your ECU, like I installed a Mugen N1 Ecu, you need to do a fouler adaptor in the de-cat and still plug in the O2 sensor.
Cheers
Nev
Difference is that the stock 4-2-1 is restricted.
I run with Rick's manifold, which is identical to Mugen manifold, complete with a Mugen exhaust system.
This setup help my mid range power quite noticable.
But if you need top end power, go for something like Spoon.
I also remove the cat, and replaced it with a megan de-cat, this helped a lot aswell, and its a cheap mod to start with.
P.S. If your are not upgrading your ECU, like I installed a Mugen N1 Ecu, you need to do a fouler adaptor in the de-cat and still plug in the O2 sensor.
Cheers
Nev
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