Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: iansoutham on 02 January 2018, 21:00:41
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I think I am right, but want to run a little confirmation.
Would a 2.2 downpipe/cat fit a 2.0? I know the second lambda hole would need blocking but other than that, it looks doable from images.
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it's around an inch abit longer in length, but the bend is a little shorter in angle.
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2.2 and 2.0 16v are to all intents and purposes identical ;)
2.0 8v is different due to the narrower head ;)
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So the angle of the exhaust manifold outlet is the same on the 2.0 as the 2.2? I know the gasket is different from VX but the same from aftermarket suppliers so looking promising.
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See post above ::)
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See post above ::)
I like to be thorough and just having the manifold exit at a slightly different point can make a hell of a difference.
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Update time, not only does it fit but it works very efficiently. There is a lambda bung which needs to be added to the rear sensor location. The sensor is relocated from halfway down the pipe and at an angle to right near the manifold and pointing at the perfect angle (in from the top of the pipe).
Purchased from the Cat-Man the other month and have wrapped all the exhaust system up to the rear catalytic converter to help keep the heat in the pipes to allow temperature to be retained in the converters themselves.
It has been on for around 500 miles now and I put it on the MOT gas analyser in work to see how efficiently it was working.
For reference, the car is an X20XEV 1997-8 model with 110k miles on the clock. Last MOT in December, the emission CO barely got below 0.5% (pass rate for this engine) for 2 seconds, which was long enough for a pass.
Figures below:
Fast Idle Test -
CO 0.00%
HC 5ppm
Lambda 1.01
Natural Idle Test -
CO 0.02%
Engine coolant temperature just below fan trip level.