Quote:
Originally Posted by Cunningr
Changing the plenum alone probably would net 0 gain, the real increase in power is from the larger throttle body. Was on the fabspeed site the advertised claim for a 986 is 30 to 35 hp, depending on mods. Personally I dont think there is that much to be gained, but they have dyno tables. Also is $1200 if you get the whole set up. Fact of the matter getting much more hp from the 986 is pricey per hp.
My plan is multifaceted, exhaust, plenum tb, software tune, sport cats, software tune adjusted. I think that will get about as much usable hp from bolt ons available, with the exception of better headers. Is it worth the cash, depends on the individual.
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This is spot on. Go full tilt on the mods as they complement each other. However with a "Crios" mod on a stock muffler (more sound gain then anything) I felt the most power gain with the full intake system change. I then put headers, secondary cat delete pipes, Borla muffler and felt a power gain, but not as much as the intake change. I do not have a tune done to my car, but calculations shows with all these mods I picked up around 30 HP. Been running this setup since 2015 and I'm very happy with it.
Did all the work myself, so no cost there other then my time. The only headers on the market that will fit a Tiptronic car without mods to the cooling hoses are the NHP 200 Cell Exhaust Headers and they cost me $1,200 at the time I got them, but they do have cats in them and my main cats where bad, so they where cheaper then replacing them with factory exhaust manifolds with the cats built into them. The Borla muffler sounds good, but the piping seems to be too small. I had to have the ends of the Borla muffler stretched wider so the secondary cat delete pipes would fit into the muffler.
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