ROAD/RACE - 4B11 Header
trust me finest, its real easy to say we drive the same, but unless you are a grandma and grandpa school of driving, human nature is to adapt to the increased power and drive it slightly harder. Also the burn characteristics change, accelleration for some cars, may result in a increased fuel ratio.
Its a tricky thing, it really depends on the car and how old it is. even cars from as recent as few years ago use very basic fuel maps, some cars dont even recongnize engine effiency gain. Some cars adjust fuel burn and other parameters accordingly to compensate to some degree.
So some cars may act different. cars are funny things, Finest your car might actually be a beast on MPG
Getting back to the braking thing, as you use more power more aggressive driving, the demands on your braking system go beyond just stopping power. The life of your braking system will be reduced as well.
just my two sense, but I have been around enough hardcore old men tuners to know , thats what they always say, you upgrade the power, you better upgrade your brakes lol
Its a tricky thing, it really depends on the car and how old it is. even cars from as recent as few years ago use very basic fuel maps, some cars dont even recongnize engine effiency gain. Some cars adjust fuel burn and other parameters accordingly to compensate to some degree.
So some cars may act different. cars are funny things, Finest your car might actually be a beast on MPG
Getting back to the braking thing, as you use more power more aggressive driving, the demands on your braking system go beyond just stopping power. The life of your braking system will be reduced as well.
just my two sense, but I have been around enough hardcore old men tuners to know , thats what they always say, you upgrade the power, you better upgrade your brakes lol
Thread Starter
Former Sponsor
iTrader: (67)
Joined: Dec 2001
Posts: 7,826
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From: Santa Fe Springs, CA.
Thread Starter
Former Sponsor
iTrader: (67)
Joined: Dec 2001
Posts: 7,826
Likes: 3
From: Santa Fe Springs, CA.
Yea no PZEV header yet but it is looking good. We have a few hundred miles on it now and with some adjustments, no CEL or anything to date!!!
ROAD/RACE
ROAD/RACE
Thread Starter
Former Sponsor
iTrader: (67)
Joined: Dec 2001
Posts: 7,826
Likes: 3
From: Santa Fe Springs, CA.
Thread Starter
Former Sponsor
iTrader: (67)
Joined: Dec 2001
Posts: 7,826
Likes: 3
From: Santa Fe Springs, CA.
Hi Rock,
I was just looking through your online catalog, and noticed the header is a 4-into-1 design. I'm just curious why you guys went with that design instead of a tri-Y design... is it because of space limitations? Also, what size is the collector on that header? Larger than stock or same size? Finally, how's the PZEV version coming?
I was just looking through your online catalog, and noticed the header is a 4-into-1 design. I'm just curious why you guys went with that design instead of a tri-Y design... is it because of space limitations? Also, what size is the collector on that header? Larger than stock or same size? Finally, how's the PZEV version coming?


