Headers on 3UZFE LS430, SC430 or GS430?

The 1UZFE EGR Delete Kit is available for sale here.

UCF11

Member
Has anyone here put custom or after market headers on their 3UZFE LS430, SC430 or GS430?

If so what kind of gains did you achieve?
 
a solid 20whp is the norm on these engines. Prolem is that most of these fit the SC400 and not the LS. S&S used to be the only brand out there for the LS but you might want to check into IMF headers... they may have an option for the LS.
 
The 4.3 engines have terrible stock manifolds.

Here is a comparison with the no longer available S&S headers.
 

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Havent heard of them until now. They look very similar to S&S. They look promising... I say go for it. they also state no modding necessary. S&S also claimed this but in reality, users needed to cut/re-position the cats.
 


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