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      06-06-2022, 08:30 PM   #397
chutak
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Drives: E90 M3, X3 M40i
Join Date: Apr 2015
Location: NoVA

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Quote:
Originally Posted by e90335e36m3 View Post
To be fair, we all want to see dynos but I agree most of us don't have time or access to do it push come to shove. I really wanted to dyno my car after I had a Harrop blower installed, and I wasn't going to go out of my way to go to another shop before and after the installation, I put my foot down and really liked what I felt. Now with this plenum, I'd run for the hills. Dropping that kind of $$$ on intake noise (no HP) is beyond comprehension. Maybe no dyno because in this case ignorance is bliss.
It's not much different than buying an axle back exhaust for sound. Most decent ones will cost $1500+ and probably gain 5 hp, if any.

Aside from a tune and test-pipes/x-pipe, there's not much else to get for significant hp gains on these cars, short of a supercharger kit. And dropping 10-11k on a Harrop can be difficult to justify for some.
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