what is the best thing thats pretty cheap for a a4 99 trans am? thanks.

 

Spark plugs are pretty cheap

 

You can start by taking off that POS Flowmaster muffler and replacing it with something that actually flows -- like a Magnaflow, Bullet Muffler, etc.

Headers are a great bang for the buck --- Pacesetter LTs are pretty cheap.

 

i was thinking off road y pipe and a magnaflow muffler

 

Check out the Texas Speed True-Dual Kit. That's what I would get again if I ever got another F-body.

 

and take the 19's off and put some 17's on it.

 

yea id love to get that true duel exhuast but not enought money yet, and i was gunna throw some stock wheels on for track days.

 

used nitrous kit.

 

19's don't look bad on 4th gens, especially with a nice drop.

 

i wish i could put a pic of my car on here cuz its realllyyy nice lookin with um.

 

The absolute best bang for the buck with a A4 LS1 car is a good quality high stall torque converter, period. No other mod will even come close to the 6 to 8 tenths off the 1/4 mile and absolute beastly feeling when you hammer it on the street.

 

yea id love to get one but its out of my price range right now. :/

 

If even a stall is out of your range, I suggest you leave the car stock like it is and just keep saving.. Performance parts isn't something you cheap out on. I would do regular maintenance and make sure the car is in top running condition.

 

Just put on a exhaust cut out before the axle and call it a day for now. Exhaust cut out is about 40 bucks and installing it should be about 40 bucks.