HP catback exhaust

[mastaBO]

Hey guys, I will be getting my catback exhaust today. Its a HP MSX. What do you think is the max HP i can get? Also, is it easy to install? Iam thinking of taking it to da shop and put it on. I wonder how muh it would cost?
So far, I got a FOCUZ intake and will be adding on the catback. What could be my HP raise?
Would NGK or whatever its called sparkplugs give m more power?

 

[Megags]

Search. You will see about 10hp with those mods. It's easy to do by yourself, so why pay a shop? Just buy some rust eater and spray it down, let it soak on the exaust bolts for a day before you mess with it.

 

[KachurRacing]

The amount of hp increase that you will see will depend on the set-up. I had a AEM CAI, Greddy Header, Apex N1 cat-back, magnecor wires and denso plugs and I put down 135hp which equals about 155 total hp a 20hp increase from stock. I reccomend getting it dyno'd after getting those mods to see your difference. $40 well spent.