Performance upgrade opinions
Thread Starter
Burning Brakes
Joined: Mar 2005
Posts: 1,112
Likes: 1
From: Torrance CA
Performance upgrade opinions
I would like some thoughts/opinions on the following setup. I have a 2004 A4 2.73 coupe with 46k miles. I have added a Z06 airbox cover, K&N filter, and WCC cold air screens. I have a Corsa Touring exhaust.
I was thinking of adding B&B shorty headers, a carbon fiber power duct and an X-pipe. Catalog specs are 10hp for the headers, 6 for the duct (B.S. according to the forum) and 8hp for the x-pipe. My question is would this be a worthwhile improvement? I would love long tubes, but I want my car to be legal. Any thoughts would be appreciated.
Cheers,
Brian
I was thinking of adding B&B shorty headers, a carbon fiber power duct and an X-pipe. Catalog specs are 10hp for the headers, 6 for the duct (B.S. according to the forum) and 8hp for the x-pipe. My question is would this be a worthwhile improvement? I would love long tubes, but I want my car to be legal. Any thoughts would be appreciated.
Cheers,
Brian
Night Owl for life
Joined: Nov 2003
Posts: 24,719
Likes: 4,556
From: Bugs Bunny should'a made a left turn here
i dont think you'll see any sort of performance improvement with the mods you listed.
spend the $1300 or so you would save by not getting those mods and get a used 3.42 differential from a manual transmission car and you'll be much more satisfied.
spend the $1300 or so you would save by not getting those mods and get a used 3.42 differential from a manual transmission car and you'll be much more satisfied.
Lepus-temperamentalus
Joined: Apr 2004
Posts: 5,827
Likes: 5
From: Roswell Ga
Originally Posted by jdmvette
i dont think you'll see any sort of performance improvement with the mods you listed.
spend the $1300 or so you would save by not getting those mods and get a used 3.42 differential from a manual transmission car and you'll be much more satisfied.
spend the $1300 or so you would save by not getting those mods and get a used 3.42 differential from a manual transmission car and you'll be much more satisfied.
Le Mans Master
Joined: Aug 2004
Posts: 8,506
Likes: 5
From: West Michigan crew Mich
CI 7-8-9 Veteran
St. Jude Donor '07-'08 & '12
They are right, go with the gears. I had 2.73s in my car
I changed to 3.73 with a vig. 3200 torque converter. You can not believe the difference. The only problem is you will eat tires at a rapid rate, at least I do
Best bang for the buck
I changed to 3.73 with a vig. 3200 torque converter. You can not believe the difference. The only problem is you will eat tires at a rapid rate, at least I do Best bang for the buck
Melting Slicks
Joined: Mar 2005
Posts: 3,222
Likes: 0
From: Mayfield kentucky
Don't waste your money on the headers shorty headers will not give you anything over factory manifolds (maybe 2-4hp) not for the money. I would go with long tube headers. Everything else there you will see little differents if any. 
I would go with a set of 3.73 or 3.90 gears first.
shorty headers will not give you anything over factory manifolds (maybe 2-4hp) not for the money. I would go with long tube headers. Everything else there you will see little differents if any. I would go with a set of 3.73 or 3.90 gears first.
Last edited by vettes4fun; Jul 29, 2006 at 06:08 AM.
