[Z06] headers
Team Owner
Joined: Nov 2001
Posts: 34,124
Likes: 105
From: Pensacola FL
The names should pretty much tell the story.
A shorty header will have short (though usually larger diameter) primary tubes and will often appear similar to the exhaust manifold it replaces. Shortys are often designed to leave the cat-convertor in factory location and are often smog-legal. They will often give a good increase in HP on the top-end, but sometimes with minimal torque gains.
Long-tubes have long primaries that can often be equal-length or tuned to promote exhaust-scavenging. Because of this, they will deliver more performance than the shortys...especially in torque.
A shorty header will have short (though usually larger diameter) primary tubes and will often appear similar to the exhaust manifold it replaces. Shortys are often designed to leave the cat-convertor in factory location and are often smog-legal. They will often give a good increase in HP on the top-end, but sometimes with minimal torque gains.
Long-tubes have long primaries that can often be equal-length or tuned to promote exhaust-scavenging. Because of this, they will deliver more performance than the shortys...especially in torque.
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Many of the shorty headers (from B&B in AZ for example) are smog legal in 50 states which makes them attractive in more ways than one. They can usually be installed by an owner easily in a DIY weekend. And they don't require modification to the rest of the exhaust system as do long tubes. They improve the looks of the engine compartment which is all anyone sees anyway. They remove substantial weight from the front of the car (over oem cast iron) where it really matters. Depending on the rest of the exhaust system, they may improve the sound of the system. Horsepower isn't what long tubes may yield, but you should expect 10-12hp and w/o the need for a tune as long tubes generally require.
B&B, JBA, BBK, BORLA, EDLEBROCK, BASSANI, CALLAWAY, DOUG'S are sources for shorty headers. Some are smog legal, some are not so do your research if they're in your future.
Melting Slicks
Joined: Jul 2010
Posts: 3,355
Likes: 113
From: Los Angeles
Just to be perfectly clear, a CARB-approved aftermarket header does NOT exist for the 02-04 Z06. Several options exist for the remaining C5 models though.
source: http://www.arb.ca.gov/msprog/aftermk...es/amquery.php
source: http://www.arb.ca.gov/msprog/aftermk...es/amquery.php
Premium Supporting Vendor
Joined: Aug 2004
Posts: 496
Likes: 14
From: Phoenix AZ
Billy Boat Shorty is CARB Legal
For C5's the Billy Boat shorty is a 4-2-1 style header. It is of course 50 state legal and makes an honest 20 HP and is half the weight of the factory manifold.
PLease let ke know if I can help further.
Mike Boat mike@bbexhaust.com
PLease let ke know if I can help further.
Mike Boat mike@bbexhaust.com
Melting Slicks
Joined: Jul 2010
Posts: 3,355
Likes: 113
From: Los Angeles
You're not telling the whole story.
This is the second time I've seen you claim CARB exemption on the C5 Z06 forum while failing to mention that this CARB EO does not apply to all Z06 models.
The full CARB EO details are here: http://arb.ca.gov/msprog/aftermkt/de...eo/D-506-2.pdf
The EPA engine code for my vehicle, a 2004 Z06, is 4GMXV05.7082. This engine code is specifically cited as not being valid under the EO. The original poster presumably drives a 2002 Z06; if his engine code is 2GMXV05.7082 (this is printed on the sticker at the driver's side of your engine compartment) then it is also invalid for him.
The full CARB EO details are here: http://arb.ca.gov/msprog/aftermkt/de...eo/D-506-2.pdf
The EPA engine code for my vehicle, a 2004 Z06, is 4GMXV05.7082. This engine code is specifically cited as not being valid under the EO. The original poster presumably drives a 2002 Z06; if his engine code is 2GMXV05.7082 (this is printed on the sticker at the driver's side of your engine compartment) then it is also invalid for him.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
This is the second time I've seen you claim CARB exemption on the C5 Z06 forum while failing to mention that this CARB EO does not apply to all Z06 models.
The full CARB EO details are here: http://arb.ca.gov/msprog/aftermkt/de...eo/D-506-2.pdf
The EPA engine code for my vehicle, a 2004 Z06, is 4GMXV05.7082. This engine code is specifically cited as not being valid under the EO. The original poster presumably drives a 2002 Z06; if his engine code is 2GMXV05.7082 (this is printed on the sticker at the driver's side of your engine compartment) then it is also invalid for him.
The full CARB EO details are here: http://arb.ca.gov/msprog/aftermkt/de...eo/D-506-2.pdf
The EPA engine code for my vehicle, a 2004 Z06, is 4GMXV05.7082. This engine code is specifically cited as not being valid under the EO. The original poster presumably drives a 2002 Z06; if his engine code is 2GMXV05.7082 (this is printed on the sticker at the driver's side of your engine compartment) then it is also invalid for him.
So what? If the thing's approved, who's going to check engine codes for individual models. The whole difference is bureucratic nonsense.
Melting Slicks
Joined: Jul 2010
Posts: 3,355
Likes: 113
From: Los Angeles
But you're right, the whole difference really is bureaucratic nonsense.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Racer
Joined: Dec 2006
Posts: 371
Likes: 9
From: Manteca CA
St. Jude Donor '09
This is the second time I've seen you claim CARB exemption on the C5 Z06 forum while failing to mention that this CARB EO does not apply to all Z06 models.
The full CARB EO details are here: http://arb.ca.gov/msprog/aftermkt/de...eo/D-506-2.pdf
The EPA engine code for my vehicle, a 2004 Z06, is 4GMXV05.7082. This engine code is specifically cited as not being valid under the EO. The original poster presumably drives a 2002 Z06; if his engine code is 2GMXV05.7082 (this is printed on the sticker at the driver's side of your engine compartment) then it is also invalid for him.
The full CARB EO details are here: http://arb.ca.gov/msprog/aftermkt/de...eo/D-506-2.pdf
The EPA engine code for my vehicle, a 2004 Z06, is 4GMXV05.7082. This engine code is specifically cited as not being valid under the EO. The original poster presumably drives a 2002 Z06; if his engine code is 2GMXV05.7082 (this is printed on the sticker at the driver's side of your engine compartment) then it is also invalid for him.
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
He gave you his e-mail address. Here's the phone number. If it's of interest, contact him...
(888) 598-3688
mike@bbexhaust.com
(888) 598-3688
mike@bbexhaust.com
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
You don't understand what it's like to live here in CA. If you happen to get stopped in a roadside smog check and they wanted to be difficult, they could impound your vehicle.
People who don't live here just don't seem to understand how serious smog testing and smog-legal equipment is. They can, do and will check aftermarket parts to confirm legality. Even the fine itself without the car being impounded is stiff - especially now with the state hemoraging money like a strainer and the police agencies turning into "revenue generators".
Le Mans Master
Joined: Oct 2000
Posts: 6,209
Likes: 33
From: Texas-out west
there is a simple answer to the smog crap...contact your congressman, support SEMA and groups like it or live with it and for you that live in calif, I feel sorry for you but you deserve what you get for living in a socialist style, liberal out of touch state if you chose to stay there. Yes I think california sucks and stand by my opinion and for your info I have lived there twice (not by choice) and wouldn't go back for any amount of money,love, prosperity etc. my opinion only
But good luck to those that have to live there and we can be thankful for the many good things in the past that came from the sunshine state.
But good luck to those that have to live there and we can be thankful for the many good things in the past that came from the sunshine state.
Burning Brakes
Joined: Nov 2008
Posts: 764
Likes: 0
From: Arden NC
You don't understand what it's like to live here in CA. If you happen to get stopped in a roadside smog check and they wanted to be difficult, they could impound your vehicle.
People who don't live here just don't seem to understand how serious smog testing and smog-legal equipment is. They can, do and will check aftermarket parts to confirm legality. Even the fine itself without the car being impounded is stiff - especially now with the state hemoraging money like a strainer and the police agencies turning into "revenue generators".
People who don't live here just don't seem to understand how serious smog testing and smog-legal equipment is. They can, do and will check aftermarket parts to confirm legality. Even the fine itself without the car being impounded is stiff - especially now with the state hemoraging money like a strainer and the police agencies turning into "revenue generators".
Burning Brakes
Joined: Sep 2009
Posts: 1,084
Likes: 0
From: Huntington Beach California
there is a simple answer to the smog crap...contact your congressman, support SEMA and groups like it or live with it and for you that live in calif, I feel sorry for you but you deserve what you get for living in a socialist style, liberal out of touch state if you chose to stay there. Yes I think california sucks and stand by my opinion and for your info I have lived there twice (not by choice) and wouldn't go back for any amount of money,love, prosperity etc. my opinion only But good luck to those that have to live there and we can be thankful for the many good things in the past that came from the sunshine state.
But good luck to those that have to live there and we can be thankful for the many good things in the past that came from the sunshine state.
Burning Brakes
Joined: Sep 2009
Posts: 1,084
Likes: 0
From: Huntington Beach California
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA