Thanks for the responses.
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Originally Posted by Dackelone
Lets not forget that the 1M has high flow cats over a regular N54. That might have something to do with it too. Especially in a street legal road car sold with a warranty.
I think IF your talking bolts on to bolt on's(ie down pipes, FMIC, tune)... both engines should make the same power level.
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I have heard this too..that the 1M has different high flow downpipes, which is ultimately why tuners like Dinan can only take the horsepower for the 335i so far (I've read around 410hp) without risking damage to the turbos or engine.
Quote:
Originally Posted by lowbudgethero
1m is basically a PPK2 with a little more power, exhaust, ecu flash, and upgraded oil cooler
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That is essentially the 335is as well...main differences being that this car didn't get the LSD or M3 Suspension upgrades...unfortunately.