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Old 06-18-2010, 01:34 AM   #11
Scooby Guru
Member#: 4414
Join Date: Feb 2001
Location: Dublin, CA
2002 WRX Sedan
Midnight Black


Originally Posted by Dave D. View Post
Here's a direct comparison of a Blouch 8cm^2 18g vs. a 10cm^2 hotside hta68. The cars are tuned virtually identically by Dom. The only possibly significant difference is the 18g has a full 3" turboback, while the hta68 car has a stock STi catback.

The 18g (thanks, Dr. Michael):
<removed graph link for reader sanity>
The hta68 (my car):
<removed graph link for reader sanity>
Put those on top of each other and it could be the same car on two different dyno runs.

Applying logic:
18g-XT will outflow 18g
therefore 18g-XT 8cm2 will outflow HTA68 10cm2

And that pretty much sums up the top-end debate.

(As if it was ever really a question, the HTA68 is more like a 16g-XT and probably should be compared to a 16g-XT, not an 18g-XT.)
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