I wanted to know around wut horse power i will end up after i put these mods in

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hahnan03gt said:
if im only gaining 10 all together why does the plenum thing say u gain 35 hp
Most mods will list a range of horsepower increases...like"this plenum will give you anywhere from an 11 to 35 HP increase" some will even indicate that those claimed ratings are based upon the mods your car already has...you will never see a vendor say "we guarantee 35 HP or your money back"
 
Do you know the difference between FWHP and RWHP??? your car is rated at 260 FWHP and your RWHP might be around 230-240ish I would guess so 265 RWHP would be about a 35-35 RWHP gain so that would be about a total of 280-290 FWHP
 
All I can say is here are my mods and my dyno.. it should be very close to mine...

2001 GT
Dragon Plenum
4.10's
LT headers
O/R X-Pipe
Magnapacks
Chip and tune at T@J

HP is 253 and 290 TQ at the wheels. It should be a couple higher with new plugs. I wouldn't bet on anything above 260 RWHP with those mods. It would take perfect air for me to hit it and I have a dyno tune