Hey all i am interested in buying the crawford headers. Are the hp gains noticeable while driving? At what rpm is it noticed? What are the hp gains? Does it make the exhaust sound any different? I have a 05 coupe with mrev, hks exhaust, pop charger/ztube. Are the headers worth it?

Thanks

 

How can you spell so well in the post body and do so poorly in the title?

 

im wondering the same thing, also has anyone done DIY for this. ive seen some alphaworks headers and it looks very hard to install.

 

I have a broken arm.. I didn't look at the title

 

Thread title fixed...

Hello, Tim. Some FGC members have had those headers you are inquiring about. I've seen a G coupe equipped with Crawford headers and cats pull 246HP on a dyno jet (baseline was 230HP). I've since forgotten what his torque was and at what rpm it made a difference. I think it would be best to pm some members who have had the crawford headers like: escobar929, maximumsportz, UFGatorg35

I do know that with the Crawford cats it will make your HKS exhaust sound deeper.

 

I have the headers...I'll be honest, I don't notice that big of a difference, a little louder, "feels" as if it's breathing easier, hard to describe, but not really faster. May be a better mod with a supercharger...I should dyno since I only pulled 236 hp pre-headers with other mods