what rockers, headers 97 gts plus power gain

nismobrown

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i have a 97 gts 9,000 miles
hi flow cats
3" corsa catback
k and n panel filter
smooth tubes.

any ideas what are the best headers to go for, i had bellanger on my last 99 gts but there might be better ones out there ?

also roller rockers . i need to know what are the best ones out there for power gain without having to mill the head or similar yet i do not want to end up with anything that sounds louder on the motor than stock.
with the above done approx how much power will the car make,

thanks!
 

uvbnbit

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Depends on how much you want to spend.
Harland Sharps w/ rods are about $700?? good for about 20-25hp
Headers are good for another 15-20hp.

I'm sure others will reply too.
 

mbccenter

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Harland sharps work well on stock heads but I would not use them when you get into higher spring rates. M and M Perfornace is a sponsor here and has your headers in stock ready to ship.
 

plumcrazy

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+1 for M&M headers.

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Glen97

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I also have a 97 GTS. A few months ago I installed a set of Bad Boyzz Garage American Racing Headers also a site sponsor. They are a 2 part header. I dont have any HP numbers but you can sure feel it. Rockers no help that's my next mod.
 

dave6666

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Jessel or wait until you can afford them. As far as headers go I have Belangers and no complaints.

You have to remember, when you ask which brand of part to buy, you're basically starting a poll. Of what everyone has. Which more than likely they'd buy them again and tell you to get them too.

Another thing is that you'd be hard pressed to find anyone that has an organized list of all the headers with a before and after dyno on each one.

Your best bet is to look at the different designs from a mechanical installation standpoint and factor in the price to reach a decision.
 

Twister

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I put harland Sharps on my 99 rt10 and went from 428 rwhp (smooth tubes/KN air intake/no cats) to 440 on the same dyno..Good mod
 

King RT10

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Headers on my 1999 Roe S/C car yielded little Hp on the dyno.
Stock are pretty efficient, with high flow cats!
 

Vic

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Twisted logic. (Hah ha, just kidding! Actually some pretty lucid stuff right there!)
Jessel or wait until you can afford them. As far as headers go I have Belangers and no complaints.

You have to remember, when you ask which brand of part to buy, you're basically starting a poll. Of what everyone has. Which more than likely they'd buy them again and tell you to get them too.

Another thing is that you'd be hard pressed to find anyone that has an organized list of all the headers with a before and after dyno on each one.

Your best bet is to look at the different designs from a mechanical installation standpoint and factor in the price to reach a decision.
 
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