It s a 2 door,it has exhaust and intake any guesses??

 

like a 20 something. Actually probably like a high-mid 16, if that, as long as it's not a Civic Si.

 

Low to high 16 if it's stick and mid 17's if it's auto...

The intake might add 3 Hp (with header) and exhaust and header may be good for 13 Hp, just exhaust would probably be about 8 Hp... these figures would be at the crank.

127 Hp Stock + 16 = 143 Hp w/ header and 137 Hp w/o.

Considering it's about 500 lbs lighter han a thirdgen and about as powerful as a V6 thirdgen I'd say it runs a little faster than a v6 thirdgen... This takes into consideration that adding these free flowing items kills what little torque it had (like 120 lb-ft) probably dropping it to about 105 which is much worse than the 2.8L V6 with 160 lb-ft and thus making a weak launch off the line.

This is just me using common sense and general figures I've seen tossed around, the effect of header(s) and exhaust is diminished with such small torqueless I4's... It may all be speculation, but most people will probably agree.

 

SI prolly runs low 15 and if the guy knows how to launch might, prolly not but might, hit a high 14

anything else I would say high 15 low 16

 

Stick shift with those very simple mods, It will no doubt run mid 15's.....if its an SI, anything else except the civic type R (not sold in america) would run a bit slower...