Best Header For 1.6L Etec Motor

[speedricer]

Ok so I'm ready to do some upgrades on my Aveo.
Can someone tell me what the best header and exhaust system is ?
I have a etec 1.6L engine w/ 5spd trans. It's currently stock.

thanks in advance.

[thehunterooo]

only way to get a header is to contact xaiogory from china, we are not cool enough to have aftermarket parts at our fingertips. Those from xaio will run at about $400 or so, you would want to buy some more things from him to save on shipping though

[speedricer]

will those headers fit my aveo ? are they direct bolt-on ?
guess I would need flange too. didn't find anything on eBay.

thanks !

[petrified.rabbit]

Xiaogary is in singapore. It's it's own county. His headers are direct fit.
He sells on eBay the best header is the cat delete. Most gains etc. But if you need to keep the cat for Antoine of emissions you need the short header.

Both are improvement Over stock but it's the other requirements that you need to consider.

As for piping 2" all the way back with mandrel bends if you eliminate all the other components. Or just run a muffler. If you are using accordian bends and or keeping all the restrictions ie resonator and post cat. Then you want 2 1/4". You don't need any bigger than that until you have extensive mods like turbo kits cams bigger block etc.