Has anybody installed the new 50 state legal JBA Shorty headers on thier 18 or 19 mustang GT?

[Stang 19]

Just wondering if anyone has any experience with the fitment for these newly released headers for 18 or 19 mustang GT with either manual or automatic ? If yes was there any noticeable difference ? Did you actually do a before and after dyno run to prove that they added power?

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[armykyle1 [HACKED ACCOUNT]

The stock manifolds are tubular. Unless you're going long tubes, there's no reason to remove them.

 

[Stang 19]

I sent JBA and email asking for proof that these are better than stock. I wanna see baseline and post install dyno runs. Gonna bet they no gots.

 

[Furious18]

I can’t imagine how it helps at all. I think cat deletes do the same as long tubes especially na

 

[VooDooDaddy]

I can’t imagine how it helps at all. I think cat deletes do the same as long tubes especially na

^^^^^THIS

Don't waste your money on aftermarket "shorty" headers on the S550. The factory-stock tubular headers are very, very good. Combine them with a set of cat-deletes and they are all you need on a naturally aspirated set-up.

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