g37xsedan

Hi all,

I am new to this site so any info is appriciated.

I have a 2009 x sedan and had the K&N short ram intake and BullyDog programmer installed about 1 month ago. I have also just ordered the stillen exhaust.

Someone told me the headers would be a good performance upgrade but reading some threads here makes it a little confusing.

Is there anything else I can add to increase the HP/TQ that would cost about the same as the headers but give me better results?

Thanks

Abramite

iTrader: (1)

I would go with high flow cats, if you want more power.

g37xsedan

I dont mean to sound stupid but if i do the stillen exhaust i thought i wouldnt have cats anymore?

eksigned

iTrader: (1)

no. install - unless you can do it yourself, is quite expensive. plus...550 retail for headers doesn't justify the power you make

BLamb

iTrader: (1)

Stillen exhaust is a cat-back, meaning it replaces everything after the cat's. You'll still have them, it's illegal in several states to run without them, but the high flow cats can usually pass CARB. It'll make the stillen exhaust sound louder as well if you go that route.

godzilla619

iTrader: (1)

overall the install of normal headers is not worth the minimal gains from the modification. if you live in an area that does not require catalytic convertors get long tube headers, these will be worth the money of install if you want headers for your car. Long tube headers remove the catalytic converters from the exhaust system. But considering the parts alone for long tube headers is $1,500 + install ($500). Most people dont bother going this route only because if you decide to go FI these parts can't be used and will need to be unistalled, as well as not being able to pass smog/inspection.

Boywdr

Yes they are all right the headers are some $$ I am going to do them at some point for the fact that I always wanted to do to. I have the Stillen exhaust as well it does help if you have the cats from still. But I have heard not only that it makes it louder in a great way but you occasionally get a light on your dash that comes and goes as it pleases I guess but with that being said I am still doing all 3 by the end of the year

Boywdr

Well already have the pipes just cats and headers to go.

Black Betty

iTrader: (60)

Short answer, no. Headers are not worthwhile.

DeamonG37s

Only 500 for headers? That's it??? Are u sure its not 500 a piece? Damn I paid 500 for headers on my civic si. I feel like I got ripped off. If its 500 ill buy boths sets. That's a deal! What brand sells it for 500?

Rochester

iTrader: (9)

The G37 already has headers, although most would call them "shorties", but there it is anyway.

You're probably referring to long-tube headers, which would eliminate your cats.

bluedevils95

iTrader: (2)

Good to know. I thought about getting them and doing an before and after dyno to see what the gains would be but no money.

JohnsVert

iTrader: (3)

Did you feel a power increase with the bullydog ?

godzilla619

iTrader: (1)

$500 for installing them not the actual parts

DeamonG37s

Yea for 2k not worth 5hp. OP u must of read knowing that its not worth it y ask again. Useless thread...