You kids are soo Cute when you get fiesty... For the record, my Akropovic Bolt on's gave me 8HP and 3 FTlbs just by bolting them on...
NOT!!!! Someone needs to back the hell away from the crack pipe... 6 HP was not a BOLT ON Increase. Dyno Variance Maybe? Maybe temperature, Engine wearing in etc. Any of these variable could add 2-4 HP to a dyno run on any given day... But Bolt ons do not give 6HP... Even if they did, you would never feel the difference...
HOWEVER!!!!
Folks that say a pair of Bolt-ons costs about the same as a full system are also high!
BECAUSE.... You cannot just buy a full system, bolt them on and be done with it... No no, you have to buy the system, buy the PC (IF your doing it right) buy Pair Block off plates, then spend at least an hour (If your a pro) spinning wrenches, and finally you had best have it tuned on a dyno and have a custom map made for you or your not going to be running right.
So a worthwhile pair of bolt ons- $600-800 Time to install and be on the road.. 15 Minutes....
A quality full system $1000-1500 + PCIII $300 + pair block off's $20-40 + at least I'll say 2 hours to install full system + Dyno time and tunning $200-300.
So Bolt ons 2-4 HP maybe loose 8-10 LBS, Cost Whatever the pipes cost, say $800
A full system, 8-12 HP loose about 16-20 LBS, Cost all told.... Using middle range prices.. $1600
So, the idea that Bolt ons and a full system cost the same is pretty much bullshit unless your going with the cheap of the cheap, in which case your prolly not going to get anything but noise.
Also the Idea of getting real power out of Busa with just Bolt ons is equally complete BS... It's called a midpipe look into it... That is where the real restriction on a Busa is, with it in place you just making noise...
So... Your both fugged in the head... STFU...
I looked at the full systems and their own provided dyno charts and I really do not see a value per dollar, it's just not there. Even looking at the company provided dyno sheets, you do not see a gain worth the money...
I'd say, loose the PAIR (Weight) = Free
Spend on some light wheels = 1600-2K
Go on a friggen diet and loose 40 lbs... = Free....
Re Gear= 20-30
Call it good....
Or hell a decent nitrous system for $1500