I got the GMPP header yesterday and tried to install it but couldnt ge the bolts off of the downpipe end. My friend keeps tellign me to get a ceramic header instead but i dont want to spend more. Has anyone had good luck with the GMPP header and seen performance gains. It prety much looks exactly like the stock one.

 

I felt a little extra boot in the bum. But iam sure they are more performant headers out there.... just depends how much you want to keep ure gm warranty and ure guranteed quality and fitment with gmpp. Where others....

 

If you cant get the bolts off go to Home Depot and get some liquid wrench. It will help you alot.

You should be fine with that manifold though. Just make sure you get a free flowing Down pipe. I think the header is over rated on these cars.

 

Mine were a bitch to get off too. I think if they were easier to get too it wouldnt be as bad.

 

OFF TOPIC

u bout the car not evem 2 days ago and u got the intake all ready..hahaha..just cant drive stock can u

 

HAHA. I have someone locally who is trying to sell a borla exhaust also. I think im going to get it

 

liquid wrench works pretty good. i had a hard time getting them out for my friends car and one of the heads on the bolt snapped. i got another one replaced under warranty (gm tech) and put it on as well as an exhaust. to me it didnt seem like it made any improvements in power wise

chiva anyone?

 

I was just thinkign about having the dealer install the header because i still need to order the gaskets for it and they would ahve a much easier time doin it. I kno it costs money though. A 2.5" dowpipe with a high flow cat would be the best bet in replacing the stock right?

 

You should be able to re use both the gaskets. I would say 99% of people do and alot of exhaust dont leak.

 

Whats the best brand of downpipe to get to go with this system

 

I would honestly recommend the ZZP Dp. You wont be disapointed with it.

 

should b able to order that at a local tuner shop shouldnt i and then they can install that and header at same time

 

You can get it from www.zzperformance.com. You should get it all installed at once. Dont pay more then 100 bucks labor for both to be installed.

 

If you do end up getting that Borla Exhaust, could you put a video of it? Ive been looking at that too.

 

You have a GTO also?

 

I had to cut the bolts off my LS when i put my catback on, and that was only after about 10000mi, way to go GM

Ill let you know how the ZZP downpipe works out, ive got it sitting on my living room floor & im going to install it this weekend.

 

should of just got the header downpipe combo from zzp

 

I wouldn't reuse the gasket...a few bucks in the beginning could save you much frustration and money in the long run, esp if you have to worry about emissions testing where you are.