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**Goat Blower** · 11-30-2008

It's best to err a bit on the thick side for the exhaust housing since it gets very hot and is subject to cracking. It's more about having a smooth transition from the head to the exhaust manifold into the exhaust housing. Porting it out huge isn't necessarily a benefit. Porting out the exhaust manifold collector area and matching the exhaust housing is.

Looks good though.

11-30-2008	#6
Goat Blower aka Goodbye Asteroids Champion! Beach Squirter Champion! Join Date: Oct 2003 Location: under the car Drives: Taylor Made R15 Posts: 7,765	Re: My first attempt at porting It's best to err a bit on the thick side for the exhaust housing since it gets very hot and is subject to cracking. It's more about having a smooth transition from the head to the exhaust manifold into the exhaust housing. Porting it out huge isn't necessarily a benefit. Porting out the exhaust manifold collector area and matching the exhaust housing is. Looks good though.