I have a 98 A4 Z28 with about 65000 miles. Im thinking of putting in nitrous but im not sure. Currently I have FTRA, Direct flo lid, TB bypass, descreened mafs, Hooker L/Ts, Hooker O/R pipe, and a K&N air filter. I dont wanna run a huge shot because at this point I cant afford to blow the engine or melt any pistons. So I was wondering what size shot I should run and what other upgrades would I need to run the NOS.
Thanks for the replies.

 

U can run a wet kit at 100 HP w/o changing anything on the car... safe side would be NGK TR6 Spark Plugs. If u go over 100 u might need a fuel pump with that many miles... I have a 2000 WS6 26k Miles with a 150 TNT Kit it ran 11.3 @ 121 w/ no problems. Be mindful of your tranny and rear end. My tranny is slipping on the squeeze only now and its been on for 2 Days, but I also have a 4000 Stall Converter and ET Streets.

 

cool, thanks for the info