Late model exhaust header on 2000 WR400

Has anyone replaced the stock header pipe with that of a late model or aftermarket one that will allow you change the oil filter without haveing to remove the header on 2000 WR400?

Yes, I did that with my '99 YZ400F and installed a complete stock exhaust system from an '01 YZ426F, bolted right on no problems. I also rejetted it...EKN Clip-4, 170MJ, 45PJ, 1.5 FS, ran great.

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