Hey guys I think I've been had. I recently purchased what appeared be a a stock obd1 usdm gsr exhaust manifold. Can anybody help me id this part, like any stamped numbers o2 sensor bung or no o2 sensor etc etc...Thanx for any replys in advance. I would like to. Know before putiing this person on blast. I am one who would like To know the facts before taking any action.

Sorry for being so ignorant. I never got a exhaust manifold when I bought my gsr motor.

 

obd1??
Whats the problem?
Is it a b17?

 

Not fitting? What is the problem?

 

Post a picture. I'm sure people will be able to tell better that way.

 

I need to know if its supposed to have a o2 sensor bung on it. If its obd1. My friends stock gsr
Heat shield doesn't bolt up to it. Is it supposed to have stamped numbers like pr3 po6 p72 for the gsr Its for my 94 b18c.

 

obd1 gsr mani will have a bung right behind the oilpan close to the cat

 

I should have done that since the begining. Eeeerrhh!!! Pics coming up.

 

 

that would be a positive on the you got had. for one it has a hole in it and no o2 bung. you can always weld one in tho

 

I hope this guy takes care of me on this prob before it gets outta hand. I wish it had like p72 stamped on it though.