Thread: Headers in 2020

Originally Posted by Jonnyboy

...as an N/A guy in California...

Oooh. You're going to want to do a deep dive into what is allowed in your jurisdiction and what potential hoops you might need to jump through.

Originally Posted by Jonnyboy

The dragging would definitely be a problem for me since my car is dropped with coilovers. Willing to lift it tho. So if these are bad and so are the SLP is my only choice to try and dig for zzp headers. Yes it's a N/A engine so I understand it won't big a huge HP gain right now. But it should still help the engine and definitely would be open to do a top swap in the future. I mean I've been saving up to keep putting money into this car. Got bc racing coilovers, replaced old exhaust pipe , got high flow cat with flowmaster exhaust new rims and tires, front and rear strut bars, new aftermarket headlights and taillights, CAI, just trying to go down the list. Thought headers would be a next great step.

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Look at the modifications in my sig if you want to stay NA and still pass smog.

Originally Posted by Jonnyboy

So no headers for now just going with the zzp power log and zzp downpipe. There was also a rear power log and I'm guessing I'ma need to buy that one too ofcourse. Also want to improve the handling so buying sway bars as well.

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I have the front plog as long as other modifications for an NA and the car is much more spirited than its stock form. My brother had the plog when he was top swapped. Headers are not carb legal in California other than I believe the TOG's.

Originally Posted by Jonnyboy

Going down the rabbit hole for the top swap and all those threads, as an N/A guy in California. Honestly it's looking like many straight up recommend the turbo route over top swap. After the turbo though then comes the fact that a 4k-5k transmission is inevitable. The Z3 turbo is looking like my new goal, and learning some tuning basics. Rollercoaster ride tbh lol.

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I am in California in the same location as you and a turbo is not legal. You would want to go the top swap route. You can find the newer style w-bodies at the salvage yard for parts. Check them out as you can on occasion find a supercharged engine. This is what my brother did when he top swapped his 03 that passes smog. It was nice to drive before he sold it. I thought about it but never did and probably won't. Mine is just a daily driver these days.

Here is the link to look at the local salvage yards Salvage Yards Near You | LKQ Pick Your Part

Originally Posted by The Guz

Look at the modifications in my sig if you want to stay NA and still pass smog.



I have the front plog as long as other modifications for an NA and the car is much more spirited than its stock form. My brother had the plog when he was top swapped. Headers are not carb legal in California other than I believe the TOG's.



I am in California in the same location as you and a turbo is not legal. You would want to go the top swap route. You can find the newer style w-bodies at the salvage yard for parts. Check them out as you can on occasion find a supercharged engine. This is what my brother did when he top swapped his 03 that passes smog. It was nice to drive before he sold it. I thought about it but never did and probably won't. Mine is just a daily driver these days.

Here is the link to look at the local salvage yards Salvage Yards Near You | LKQ Pick Your Part

There is an 04 with the supercharger at santa fe springs

2004 Pontiac Grand Prix | LKQ Pick Your Part - Santa Fe Springs