obx exhaust manifold notice

[chris90]

Hello everyone ,

i bought a 90 zr-1 with a corsa exhaust, with the original manifold, just saw this on ebay. https://www.ebay.com/itm/152525073723?fits=Submodel%3AZR-1%7CModel%3ACorvette&epid=20015011119&hash=item238333ed3b:g:jmYAAMXQdm5Q9unm


Has anyone already bought this exhaust manifold or do you have any advice?

thanks Chris

[1991 Corvette ZR-1]

Hi Chris, I am running OBX headers. If you look around, you may be able to find a random speed shop trying to unload them for cheaper. I got my set for $450. I then sent them to Swaintech for their white lightning coating for about $350. It insulates them and helps keep the exhaust flow at a higher speed. The primary reason I got them coated was the bare stainless in the engine bay cooking everything didn?t sit well with me. I have seen pics on here of people running bare stainless headers but I wanted a little extra piece of mind.

Also, if you are not running EGR like the later ZR-1 models, there is an EGR tube on the passenger set that will need to be plugged or welded. I opted to cut it off, grind it smooth and had a local welder plug the hole. I will not say they are the greatest headers ever for an LT5, but I am pleased with them and they are weight reduction and dramatic relief on the restriction of the factory manifolds.

[efnfast]

Mine rub the steering shaft. Had i know i would have dimpled them before having them coated.

[Starman]

Buy the Stainless Works long tube headers, you will not be sorry.


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

[HAWAIIZR-1]

My humble opinion is to buy American. Sorry I?m against China making copies of a US header manufacturer and selling in the US with no manufacturing laws to comply with. I don?t know if they tried to copy Stainless Works design or not, but let?s help keep the jobs in America. SW gives ZR-1 Registry members a huge discount so let?s help to keep them in business. Yes, you can spend way less, but I hate how they copy even Corsa (but they can?t replicate) their exhaust systems. The extra price is worth it and you can feel good about it.


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[32valvZ]

Good quality used is always an option also.... just a thought.

[chris90]

thank you all for your experience and advice. :thumbsup:


I will wait to have the car, 2 months minimum wait :cry: