Vortech With Topspeed Header?
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Joined: Dec 2002
Posts: 49
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From: West Seattle
I installed mine right out of the box, had it dyno, check air fuel mixture. You can improve hp with a tuner who knows what their doing, but if not they'll screw it up. I have a custom headers and a exhaust system and out of the box it produced 351 rwhp at 6100 rpm. That is enought for me. My fuel efficiency went up too. The car is averaging 24 mpg city/hwy combined. At 70 mph it clicks off 28mpg on the level.
Registered User
Joined: Jul 2005
Posts: 230
Likes: 0
From: Across the Pond United Kingdom
Originally Posted by mel terrana
I installed mine right out of the box, had it dyno, check air fuel mixture. You can improve hp with a tuner who knows what their doing, but if not they'll screw it up. I have a custom headers and a exhaust system and out of the box it produced 351 rwhp at 6100 rpm. That is enought for me. My fuel efficiency went up too. The car is averaging 24 mpg city/hwy combined. At 70 mph it clicks off 28mpg on the level.
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