Headers
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,628
No, since none are CARB approved.
Hence a aftermarket part has to have a Carb# for that car/year to be able to swap it out with a OEM part in Ca..
As for the grey area, some have swapped out to a OEM Z-06 exhaust system (uses OEM shorty headers), and most inspectors will not pick up on the swap since it still OEM type corvette parts in play. For a power gain, you looking at around 15HP increase due to the oem shorty headers (around 25hp with LT headers instead).
Note, the LS-3 X pipe is 2-1/2", while the ZO6 X pipe is 3" instead. If you are going to change out the system and use your old mufflers, will need to have 2- 3" to 2-1/2" installed in line for the needed off set of pipe size to the muffler pipes.
Hence a aftermarket part has to have a Carb# for that car/year to be able to swap it out with a OEM part in Ca..
As for the grey area, some have swapped out to a OEM Z-06 exhaust system (uses OEM shorty headers), and most inspectors will not pick up on the swap since it still OEM type corvette parts in play. For a power gain, you looking at around 15HP increase due to the oem shorty headers (around 25hp with LT headers instead).
Note, the LS-3 X pipe is 2-1/2", while the ZO6 X pipe is 3" instead. If you are going to change out the system and use your old mufflers, will need to have 2- 3" to 2-1/2" installed in line for the needed off set of pipe size to the muffler pipes.
Last edited by Dano523; May 6, 2015 at 11:08 AM.
Melting Slicks
Joined: Mar 2007
Posts: 2,674
Likes: 38
From: O.C. CA
St. Jude Donor '08
No, since none are CARB approved.
Hence a aftermarket part has to have a Carb# for that car/year to be able to swap it out with a OEM part in Ca..
As for the grey area, some have swapped out to a OEM Z-06 exhaust system (uses OEM shorty headers), and most inspectors will not pick up on the swap since it still OEM type corvette parts in play. For a power gain, you looking at around 15HP increase due to the oem shorty headers (around 25hp with LT headers instead).
Note, the LS-3 X pipe is 2-1/2", while the ZO6 X pipe is 3" instead. If you are going to change out the system and use your old mufflers, will need to have 2- 3" to 2-1/2" installed in line for the needed off set of pipe size to the muffler pipes.
Hence a aftermarket part has to have a Carb# for that car/year to be able to swap it out with a OEM part in Ca..
As for the grey area, some have swapped out to a OEM Z-06 exhaust system (uses OEM shorty headers), and most inspectors will not pick up on the swap since it still OEM type corvette parts in play. For a power gain, you looking at around 15HP increase due to the oem shorty headers (around 25hp with LT headers instead).
Note, the LS-3 X pipe is 2-1/2", while the ZO6 X pipe is 3" instead. If you are going to change out the system and use your old mufflers, will need to have 2- 3" to 2-1/2" installed in line for the needed off set of pipe size to the muffler pipes.
Thread Starter
Racer
Joined: Mar 2015
Posts: 303
Likes: 0
From: North Cali.
No, since none are CARB approved.
Hence a aftermarket part has to have a Carb# for that car/year to be able to swap it out with a OEM part in Ca..
As for the grey area, some have swapped out to a OEM Z-06 exhaust system (uses OEM shorty headers), and most inspectors will not pick up on the swap since it still OEM type corvette parts in play. For a power gain, you looking at around 15HP increase due to the oem shorty headers (around 25hp with LT headers instead).
Note, the LS-3 X pipe is 2-1/2", while the ZO6 X pipe is 3" instead. If you are going to change out the system and use your old mufflers, will need to have 2- 3" to 2-1/2" installed in line for the needed off set of pipe size to the muffler pipes.
Hence a aftermarket part has to have a Carb# for that car/year to be able to swap it out with a OEM part in Ca..
As for the grey area, some have swapped out to a OEM Z-06 exhaust system (uses OEM shorty headers), and most inspectors will not pick up on the swap since it still OEM type corvette parts in play. For a power gain, you looking at around 15HP increase due to the oem shorty headers (around 25hp with LT headers instead).
Note, the LS-3 X pipe is 2-1/2", while the ZO6 X pipe is 3" instead. If you are going to change out the system and use your old mufflers, will need to have 2- 3" to 2-1/2" installed in line for the needed off set of pipe size to the muffler pipes.
Thanks for the Info. that helps a lot.
Thread Starter
Racer
Joined: Mar 2015
Posts: 303
Likes: 0
From: North Cali.
