Has anyone installed either of these on their cars so far and had any good performance gains with them? do they actually fit well, or is there alot of welding to be done? any dynoed results, worth it??? Thanks in advance!!!

Stillen - http://www.g35parts.com/9083/osc/pro...roducts_id=800
Impul - can't find them again, dammit

 

IMPUL headers are not made for ours cars. They are meant for a G37 and have to be fabricated to fit due to our steering column. Plus its 2 grand for IMPUL headers.

I have IMPUL headers and they are truely amazing before they cracked where they were fabricated. Not IMPULS fault, its the people in Japan who fabricated it fault.

I'll be putting them back on once i get my hfc and FI exhaust.

 

Check the Stillen web-site, they dont have those headers for our cars.
I had the same problem with this site www.everythingg35.com ... but when I asked Stillen they said they dont make headers for G35 sedan 07-08

 

well, so a big NO for both lol, well at least I asked. hope someone comes out with some decent headers for our car sometime soon

 

+111^^^

 

I heard through the grape vine JIC may be working on a quality set of headers for our sedans for about 800ish

 

I'd definitely put up 800 for a truly quality set, correct me if I'm wrong but I think some of the most gains for our cars can be made from the exhaust manifold