Shorty headers y-pipe recommendations for a california car
03-01-2006, 11:19 AM
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Shorty headers y-pipe recommendations for a california car Well, I was looking into getting some headers for my 99 camaro. I saw that JBA made a nice set for my California car but I am not sure what y-pipe I should go with. I probably don’t really need a y but I figured I would go ahead and change that since I have a borla cat back. Any one have any recommendations?
03-01-2006, 11:34 AM
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Personally the gains from shorties is IMO not worth it. If it where me I'd either run LT's and a catted Y so it would pass a sniffer and OBDII test and just hope they don't look to close, or I'd keep stock and spend the money on something else.
(as a side issues are Mac mids CARB certified??? If so they might be worth a butchers)
Good header design is about scavenging not just flow. In fact even the crappier 98-00 headers flow pretty decently, so from what I've read only expect 2-5bhp gain over stock.
If you go FI then shorties will help more, and this will be due to flow, it will help get the hot gases out of the engine easier.
Remember you can still make some really impressive rwhp numbers on stock manifolds.
(as a side issues are Mac mids CARB certified??? If so they might be worth a butchers)
Good header design is about scavenging not just flow. In fact even the crappier 98-00 headers flow pretty decently, so from what I've read only expect 2-5bhp gain over stock.
If you go FI then shorties will help more, and this will be due to flow, it will help get the hot gases out of the engine easier.
Remember you can still make some really impressive rwhp numbers on stock manifolds.
03-01-2006, 11:37 AM
#4
Originally Posted by 300bhp/ton
If it where me I'd either run LT's and a catted Y so it would pass a sniffer and OBDII test and just hope they don't look to close, or I'd keep stock and spend the money on something else.
03-01-2006, 11:42 AM
#5
Originally Posted by 300bhp/ton
Personally the gains from shorties is IMO not worth it. If it where me I'd either run LT's and a catted Y so it would pass a sniffer and OBDII test and just hope they don't look to close, or I'd keep stock and spend the money on something else.
(as a side issues are Mac mids CARB certified??? If so they might be worth a butchers)
Good header design is about scavenging not just flow. In fact even the crappier 98-00 headers flow pretty decently, so from what I've read only expect 2-5bhp gain over stock.
If you go FI then shorties will help more, and this will be due to flow, it will help get the hot gases out of the engine easier.
Remember you can still make some really impressive rwhp numbers on stock manifolds.
(as a side issues are Mac mids CARB certified??? If so they might be worth a butchers)
Good header design is about scavenging not just flow. In fact even the crappier 98-00 headers flow pretty decently, so from what I've read only expect 2-5bhp gain over stock.
If you go FI then shorties will help more, and this will be due to flow, it will help get the hot gases out of the engine easier.
Remember you can still make some really impressive rwhp numbers on stock manifolds.
03-01-2006, 02:22 PM
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Originally Posted by Redneck Z
If you NEVER plan on doing LT's then I'd do shorties on a 98-99 car, with a custom y-pipe, high flow cats and flowmaster merge. If you aren't gonna ever do LT's, you might as well optimize what you've got.
03-01-2006, 02:38 PM
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This is what I'm having a hard time with, going back to CA.
So LT's and duals with Cats can pass smog though???
...I know it will fail visually, but can it pass the sniffer/OBDII?
I thought shorties only made a slight improvement on 98-00 cars, not worth it though. May as well keep the stock manifolds...if you're going to change it up, its already illegal....so you may as well go all out with LT's in my opinion.
So LT's and duals with Cats can pass smog though???
...I know it will fail visually, but can it pass the sniffer/OBDII?
I thought shorties only made a slight improvement on 98-00 cars, not worth it though. May as well keep the stock manifolds...if you're going to change it up, its already illegal....so you may as well go all out with LT's in my opinion.
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03-11-2006, 04:15 PM
#8
I am running JBA's with mufflex test pipes and SLP Y pipe and magnaflow catback and making pretty good power see sig. Easy to pass the smog test just put the cats back on. LG motorsports makes a little better Y pipe it is 2.75 inch and will work with your stock cats and the mufflex test pipes.
03-11-2006, 04:45 PM
#9
Originally Posted by 98Trans
This is what I'm having a hard time with, going back to CA.
So LT's and duals with Cats can pass smog though???
...I know it will fail visually, but can it pass the sniffer/OBDII?
I thought shorties only made a slight improvement on 98-00 cars, not worth it though. May as well keep the stock manifolds...if you're going to change it up, its already illegal....so you may as well go all out with LT's in my opinion.
So LT's and duals with Cats can pass smog though???
...I know it will fail visually, but can it pass the sniffer/OBDII?
I thought shorties only made a slight improvement on 98-00 cars, not worth it though. May as well keep the stock manifolds...if you're going to change it up, its already illegal....so you may as well go all out with LT's in my opinion.
03-11-2006, 05:07 PM
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Originally Posted by 98Trans
So LT's and duals with Cats can pass smog though???
...I know it will fail visually, but can it pass the sniffer/OBDII?
...I know it will fail visually, but can it pass the sniffer/OBDII?
03-11-2006, 09:34 PM
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I have a set of ported and jet-hot 2000 coated stock manifolds for sale. They should gain you something without any visual or mechanical differences. The manifolds are from an 02 so the boss for the egr is not drilled, it is possible to drill if you want to keep the egr.
