Yes, where you live it may not be a big thing. But in the colder area's the OEM o-rings shrink when it's cold and you have idle issues.
The new orange o-rings are like $20.00 at the dealer and are twice as big as the 05's came with. The TB should be fine.
You should also tighten all the gas line clamps under the intake manifold while its off. Same type thing, when it's 20F the hoses can leak.
miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
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