Quote:
Originally Posted by SammYyYyY
Hey all!
Soon I’m going to be installing a set of 1 7/8” Kooks longtubes, a Corsa Xtreme+ system (midpipe and axle-back), and a Rotofab Big Gulp intake on my 2018 ZL1 1LE. I was wondering if anybody had any insight as to what throttle body I should use.
My local shop (who will be installing and tuning the car) said that they can port the blower snout so we can fit a 103mm TB on there; my concern with this is that I won’t see much of a gain from porting just the snout and not the rest of the blower. Is this the case?
I could also do the classic LT5 + adapter plate; if I do this, will I see any real performance gains?
I’d love to hear anybody’s insight. Thanks!
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It's beneficial to port the blower with the snout...you have to port the snout for a 103mm throttle body! Stock setup with a ported blower is maybe 30whp gain...E85/boost/Colder plugs is what these cars love!