How much HP am i looking at here?

How much Hp am i looking at here out of this little set up?

Intake/ Stock header / Cat straight pipe / catback 5zigen Cannonball exhaust

20-25hp all together?

i wish they had like a site where you can put in ur mods and it tells u true hp gain, not just those advertising HP gains they want us to think we get...

i think some where near to 20hp

test pipe i dont know about the gains for an n/a motor

it would be nice to have a site like that but the thing is it would differ greatly from car to car, and how the engine was cared for

yeah you could say its anywhere from 15-25 hp.. its too hard to tell how much mods are gonna give you cause every company makes different products that give different results.. the only way to tell is to dyno it but after only exhaust work, its not even worth it..

with injen intake,and hks catback with super afc i put down 139whp and 151 wtq

they could have class of engines by mileage, and mods. I think that will be a cool idea, and also factor in altitude, and give you an estimate.

I would give it 10-15whp max.

I would say at least 25 HP...
Just the intake & a freeier flowing exhaust really makes it breath much better!

I was thinking about a header on my 91 240, (I already have Intake/free flowing exhaust, but with cat) but the stock manifold design looks pretty good as it is...

I think Nissanfanatic is right. Around 10-15 whp.

from stock to completely aftermarket?? i think its no more than 20 but no less than 15..

i have decided to upgrade the header as well... before i said stock header, but now doing the whole shabam!

Long headers to Cat Pipe to 5 zigen cannon ball exhaust, plus the intake... so im looking at about 25hp here....

then im thinking about pulling the cams off a 91 240 and the altima.. one of each lol!!

91 240 has a good exhaust duration of 248 (compared to 95 240 with 232) and the altima has the same intake duration of 248.. so this will give me more of that HP at higher RPM, compared to right now where it tops its HP at like 55 ... (cam swap alone gives about 22-25 hp +)

so adding it all up 155+25+25=205 H-ponies baby!! :naughty:

Sweet!

Good luck, but don't expect such high numbers. It might be unrealistic. It's better to think low and be pleasantly surprised then think high and be dissapointed. People often over estimate the gains of modding.