I need new headers. What to buy?

[Minaj]

 hunter951 said:

I'm looking at putting new headers on too... did the xforce ones give good gains?

I had those headers on my car, the mesh in the up pipe collapsed. I would suggest you to get a sinco.

[avichal.k]

Where can you source a sinco one from ? I mailed them ages ago and they said that they don't do one for ej20

[Richwalk]

Pretty sure they do...

[Guest]

Told me they could 12 months or so ago. 900ish for lower half 1200ish with up pipe.

I still think the perrin style are pretty much as good as it gets in single scroll.

[avichal.k]

just realised i had asked them for twin scroll up pipe for Ej20, oops. their reply was "No sorry we dont make anything for this"

[Minaj]

 evowrx said:

Told me they could 12 months or so ago. 900ish for lower half 1200ish with up pipe.

I still think the perrin style are pretty much as good as it gets in single scroll.

Wtf, they quoted me $1500 the ****s lol.

[Guest]

Well them and murch are tight so may have had something to do with that pricing.

[kris_pran]

Killer B holy headers are the best single scroll headers on the market, dyno tests have confirmed 20+whp gains. Sinco quoted me 1500 for headers and ewg up pipe.

[Guest]

Look great but hell id rather throw another 1k at the engine and run perrin style. Perrin and invidia both have documented gains.

[Guest]

This only relates to twin scroll sump with single scroll turbo options.

Done some more reading on this. Looking at dyno results and independent testing from states/uk seems the invidia and full race show biggest gains in torque up to 43lb and 15-25hp where the perrin style 15-25hp and 15-25lb same as the killer b. So invidia - full race - killer b - perrin from where Im sitting. Of course with price you're better off just buying SSI/Kinugawa/XForce Twin scroll style with S/S up pipe. Guessing GT Spec is similar but havent done any reading on those. I dont see why killer b dont make a cheaper header same style but out of 304 to bring the price point down as it looks designwise like it is the shizl for road application. See they do one suitable for stock 2 bolt up pipe but still hefty price.

I think GT Spec/Kinugawa are both made by Zage but no fact on it. Redline were buying bits off MGP but no idea if they have any relation to SSI.