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I have a 1999 y87 with magnaflow cat back exaughst. How much hp gain do you think I'm getting with it?
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1999 y87 a4, american thunder cat-back, 3.42 gears, headers, grey racing stripes, billet grill, 17inch c5 rims -
do you have any other mods besides the exhaust?2003 Chrome Silver Nissan 350z 6 Speed<br /><br />2001 Bright Rally Red Camaro 3800 M5-----SOLD but missed -
not yet, atleast to my knowladge got the car off a lot so wasn't notifie of all mods,1999 y87 a4, american thunder cat-back, 3.42 gears, headers, grey racing stripes, billet grill, 17inch c5 rimsComment
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I have other mods taht arn't engine like c5 rims, and 3:42 gears1999 y87 a4, american thunder cat-back, 3.42 gears, headers, grey racing stripes, billet grill, 17inch c5 rimsComment
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if there are no other supporting mods i would say less than 10hp to the wheels.2003 Chrome Silver Nissan 350z 6 Speed<br /><br />2001 Bright Rally Red Camaro 3800 M5-----SOLD but missedComment
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Do some free or inexpensive air intake modes like these: http://home.comcast.net/~grayman99/Air-intake.htm
and you should be seeing about 10-15 hp from that catback rather than 5 to 10. basicaly even just $5 in intake mods will get you some HP and better throttle response.Comment
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with some added aftermarket headers, to my already cat back exaust what kind of increase can I expect?1999 y87 a4, american thunder cat-back, 3.42 gears, headers, grey racing stripes, billet grill, 17inch c5 rimsComment
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