thoughtbender25

My 2005 4.0L V6 Mustang was purchased with no modifications.

I have since added the following and would like to know how many horsepower I have added as a result. I can guess based on the product's claims, but we all know how they can be generous with their numbers. Anyone out there know how much hp I actually added by installing these mods.

S& B Cold Air Intake
Gibson Exhaust Muffler
Diablo Sport Predator Tuner-----91 octane tune

nonstopred

probably like 20-25 rwhp

tedBalog

Yea, i'd guess 15-20ish.. If it's a canned tune..

thoughtbender25

Besides headers, what would be the next bang for the buck HP mod I could add. I hear pulleys and ingnition wires would be a good start.

tedBalog

Some racing stripes should add 1-2HP..

Hehe, I haven't heard the best reviews from the pullies, they were rubbing the alternator and shaving the belt, and I heard killing alternators. With the wires, I wouldn't imagine it would help much, if any.

chrisc

drive shaft is a good one, $500....headers are not very "bang for the buck", they dont show much gains.

Grenaten

i think i heard with ignition wires youll be looking at a whopping 1 hp increase

tedBalog

I wouldn't personally do headers unless FI was a definate down the road. They're pretty expensive for the low gain you do get, not to mention a pain, or expensive to install.. You MIGHT get an increase from wires, but you certianly wouldn't notice it. They're more for dress-up IMO.

I'd suggest for your next upgrade either a drive shaft or gears..

nonstopred

I'd get a different intake...not too many people are on the s&b and its not the most tunable intake. The JLT and the C&L will show much better gains with a tune then one of those.

fazm

i ran 14.32 with the K&N intake....

headers arent that hard to do, if youo get the jba's. about 2-3 hours for someone that normally doesnt work on cars.


but yes, headers are more for f/i