Trying to make a decision here on headers..... feedbacks with personal experience as well as dyno numbers would be greatly appreciated...

Sam

 

Doesnt the majority go for EVOMS, I am not sure but since you have a Cargraphic Exhaust I dont think Fabspeed might compliment it. Jut my 0.2

 

Sam

you may want to consider porting welds on the exhaust port flanges and collectors on the stock headers for better flow for additional hp. this approach is supposed to provide 10-15hp at lower cost and it also retains the exhaust heat for higher velocity flow (or so i'm told). i posted a thread on this topic in the 997tt forum on the other board. see below for details:

http://forums.rennlist.com/rennforum...hlight=headers

 

EVOMS ALL THE Way !!!!

I tried some ported ceramic headers that are sold here within the forum, then tried evoms headers = 30hp gain on my 996tt using evoms !!!

 

Dean, you've posted this a couple of times.......and it just isn't believeable that any "shortie" header can release 30 added hp......much less than 30 hp more than a ported header, which as we know adds 5-8 hp depending on how much weld slag was on a particular header (it varies).

I love EVOMs products as much as the next guy, but lets not make stuff up

 

evoms hands down

 

AMEN 30 HP

 

I don't have any dyno figures to report, but I *will* say that the EVOMS headers are a very nice piece, and it's pretty easy to see how they will flow better and offer less restriction than the stock units.

I've got the EVO headers on my Protomotive 675 car. Now I just need to get EVO's clutch installed too, so I can turn all that power into more than clutch smoke