[Perry Manessis]

QUOTE (hyundaibonestock @ May 30 2010, 03:40 AM) index.php?act=findpost&pid=327792

does ne1 know where 2 find performance parts 4 my 07 sonata 2.4l like intake, headers,exhuast,ecu nething!

Yes, check Korean Auto Imports, Shark Racing and a few others floating around. Also check ebay. They are pricey.
Don't bother with any so called intakes. You will either need to fabricate one, or just do what most of us did and remove the resonator from inside the wheelwell.
Don't bother with the pricey exhausts from them either. You can buy a good muffler and have an exhaust shop cut and bend the pipes to fit. 2 1/2" pipe from the cat back would be prefect.

 

[Perry Manessis]

QUOTE (Big B @ May 30 2010, 11:57 AM) index.php?act=findpost&pid=327846

Really not to make a difference, they might as well be show parts.

The resonator inside the wheel well housing is a big performance reducer for the I-4's. It slows down the air flow and robs it's performance. Not to mention the restrictive resonator on the exhaust. The I-4 Theta motor has a lot of potential, but the restrictive intake and exhaust only reduces it's output and barely affects fuel economy. You V-6 guys barely feel it, with what a 60 lb/ft torque advantage, but we I-4 do feel it a lot.
BTW, I took the resonator of my Santa Fe, that has the same 3.3L (with a bigger intake though) and I feel the difference in mid range and top end.

 

[Perry Manessis]

QUOTE (downhiller88 @ May 30 2010, 09:42 PM) index.php?act=findpost&pid=327974

^what wheel well ar you talking about for the resonator?

Left Front (driver's side), take it off and you will see a black box with 3 10mm bolts. Do a search, there's a detailed post about it.

Here's the link http://www.hyundai-forums.com/t19239-st-20-air-box-mod.htm

PS, it's really up, by the strut tower and you will need a stubby ratchet to get the pain in the butt 3rd bolt off. And, it's pretty big, like 1 foot by 1 foot.