Hey guys i was wondering What would give the is350 some good gain other than intake/exhaust?

 

Headers will give you a better gain then those two combine.

 

^^yup what he said headers will add 16-20 rwhp but some people had issues with the 02 sensor and the car throwing a code so be careful with that and intake wise the popular ones that actually add power is F sport and Joe Z because the rest just draw hot air which make u lose power

 

What are the best headers for the is350?

 

Unless you end up boosting the car, an aftermarket suspension setup and better tires will probably be a better use of your money. But if you enjoy a loud, obnoxious car...suck and blow mods are a must!

 

they already have solution for it. CEL eliminate is what they called which is extend the 02 sensor further from the exhaust pipe BUT you may not have enough of room for it unless you got 90 degree CEL eliminate

 

PPE headers come with O2 simulators to stop the CEL from turning on.

 

Sorry but understand header only with an intake doesn't sound like a ricer. Know before you talk down on mods. I have ppe headers, joe z intake and fujistubo exhaust. My car so quite nobody has ever notice I have those mods.

 

^Funny, last time I checked anything loud and obnoxious didn't = ricer.