01-16-2018, 01:02 PM
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#72
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Airborne at your service
Join Date: Sep 2014
Drives: '17 BRZ Series.Yellow
Location: El Paso, Texas
Posts: 6,420
Thanks: 4,579
Thanked 5,706 Times in 2,992 Posts
Mentioned: 33 Post(s)
Tagged: 2 Thread(s)
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Quote:
Originally Posted by nikitopo
Without the heat shield it costs less, but yes you have to pay for OEM quality:
https://www.japanparts.com/parts/detail/51411
About the feel, it won't change much in mid range torque. After the 5k RPM the sensation is that you have a VTEC. This is with a combination of the header and the Cosworth stage 1.0 kit. The tune is also strong on high RPM, but I cannot attribute all the gains to the tune. This is a comparison graph of a pre-17 car (blue & yellow) and a post-17 car (red & green). You can see the difference especially after 5.5k with a bump in torque:
In the stock +'17 cars there are a few more changes, but you get most of the feel with the new header, a better air filter and a good tune.
Finally, the sound is more racy on high RPM. |
The Cosworth manifold really helps for the up top zing! It's really great. Also sounds sooooooooooo much better than the stock manifold.
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