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what are the difference around NGM different stage I/M???
I always heard ppl said stage2 stage 3 stage4 I/M......what's the difference?
 

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boiling_water said:
what are the difference around NGM different stage I/M???
I always heard ppl said stage2 stage 3 stage4 I/M......what's the difference?
Stage 2 IM is the stock IM with a polish job on the inside for easier air flow

Stage 3 IM is the stock IM with a poilish job and it has been gasket matched.

Stage 4 IM is a whole new IM only available from NGM. It has been dyno tested for optimum HP gain. Its also been polished on the inside.
 

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Slortchus Maximus Non-Adminus
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Actually I believe the Stage I is the just the lower IM, the Stage II is just the upper IM and the Stage III is both the upper and lower IM.

I could be wrong though, but in either case the Stage II IM is no longer on their website and NGM may not sell it any longer.
 

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Ryloth said:
Actually I believe the Stage I is the just the lower IM, the Stage II is just the upper IM and the Stage III is both the upper and lower IM.

I could be wrong though, but in either case the Stage II IM is no longer on their website and NGM may not sell it any longer.
OHHHhhhhhhhh yeah. Your right.

another note;

Stage1/Stage 4 combo was dyno'd to make ~24whp.
Not sure what Stage 2 or the Stage 3 combo makes.
 
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