I'm looking at a VR5 and trying to decide whether to grab a local model with the 4.5L 200, or order in and wait for the 250. I certainly want the extra power (who doesn't) yet I'm curious if there will ever be an easy upgrade.
I emailed the guys at magnum tuning about their chip upgrade, yet no response yet. They have an identical chip, tune, map and everything for that works on the 200 and 250, so I was curious if using a chip would bump it to 250, and then some. As it appears that the stock 250 only has a different "tune" coming from the ECU vs the 200.
http://www.magnumtuning.com/en/detai...er/4-5l-250-hp
Yet then again... I'm not sure how Bayliner/Merc can ask for $4k more for the 250 engine if it's really just the difference of an ECU...
I emailed the guys at magnum tuning about their chip upgrade, yet no response yet. They have an identical chip, tune, map and everything for that works on the 200 and 250, so I was curious if using a chip would bump it to 250, and then some. As it appears that the stock 250 only has a different "tune" coming from the ECU vs the 200.
http://www.magnumtuning.com/en/detai...er/4-5l-250-hp
Yet then again... I'm not sure how Bayliner/Merc can ask for $4k more for the 250 engine if it's really just the difference of an ECU...
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