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Mitsubishi eclipse spyder 4g64


Probationary Member
Dec 25, 2020
Portland, Oregon
Hi...I have a 1999 mitsubishi eclipse spyder convertible GS 4g64 ...I have tried to different sets of headers for this car and both sets have been wrong....Is there a upgrade for headers for this 4g64 motor....please let me know...


Supporting Member
Jul 11, 2009
Some where in, Colorado
Gonna have to go custom. Get a bare 4g63 exhaust manifold flange and have one built off of that.


10+ Year Contributor
Dec 9, 2010
wampum, Pennsylvania
Whats wrong with the ones that you have gotten? if its a flange issue just order a 4g63 flange and have it welded on to your headers.


Proven Member
Jun 16, 2017
Bangor, Pennsylvania
They're likely made in China 420a headers that eBay and Amazon sellers inaccurately describe as fitting a Spyder. I came across a few of these early on when I originally bought my car. The flex pipe on the OEM manifold was deteriorated and the ebay headers were cheaper than OEM. I even reached out to the seller preemptively because the "fits non Turbo " description didn't feel right. Seller insisted they would fit, they didn't.


Supporting VIP
Sep 13, 2012
St. Paul, Minnesota
First, make sure you didn’t order 420a headers, as jinscho mentioned.

You can order 4G63 N/A headers. You will have to drill out both outer most bolt holes in order to make it line up.

DC Sports sells a 4-2-1 ceramic coated headers under part #MHC4001.
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