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ZL WON · 06-22-2012, 05:46 PM

The only draw back of going with the larger 90mm throttle body of the ZL1 factory 87mm throttle body is that is looks hideous. Below is a picture of what it would look like mounted to the snout without making any changes to the air inlet.

This is what it will look like with a small modification to the air inlet pipe.

In order to flip the TB 180 degrees you need to make a very small modification tot he air inlet. Below are some photos I took describing what needs to be done to make this a very clean install and not have to look at the bulky actuator housing on the 90mm TB.

I hope this helps.

06-22-2012, 05:46 PM	#1
ZL WON Drives: too many to list Join Date: Nov 2011 Location: austin Posts: 151	Clean DIY install of the 90mm LS3/LS7 throttle body. The only draw back of going with the larger 90mm throttle body of the ZL1 factory 87mm throttle body is that is looks hideous. Below is a picture of what it would look like mounted to the snout without making any changes to the air inlet. This is what it will look like with a small modification to the air inlet pipe. In order to flip the TB 180 degrees you need to make a very small modification tot he air inlet. Below are some photos I took describing what needs to be done to make this a very clean install and not have to look at the bulky actuator housing on the 90mm TB. I hope this helps.