porsche

after installing xpipe with no tune it made 8rwh and it goes lean to 13.7.
also for kicks then i put on a c@l intake with no tune and could not finish my dyno run. goes way to lean. so make sure you tune before driving around with bolt on parts.

HOTLAP

Porsche - what x-pipe did you install, and does it have the high flow cats or no cats? Did you install just the x-pipe or a cat back/axel back system as well? Just curious as Magnaflow has stated up to 19rwhp with no tune(combined with the Magnaflow cat back exhaust)....by the way - thanks for the data - I suspected that adding less restrictive exhaust would make the engine run lean despite claims that changing exhaust doesn't add much or require a tune. Appears that the intake side is more critical - but still the exhaust side does need to be taken into account for accurate tuning.......I'm a bit confused as to how tuners can claim that a single pre-made tune can cover a variety of mods......really hits home that a trip to the Tuner shop is required if you have multiple mods, i.e., intake and exhaust sides.

porsche

bassani hi flow cats with x pipe .

HOTLAP

Stock mufflers?

porsche

all stock just x pipe hi flows. I was having a cel problem and had a night to kill at a friends dyno so i put back to stock and started over . steeda pullies 4 hp over x pipe dyno. so now it is up to 285 at this point with no tune. Now this is strange my all time high is like 292 rwh with a c@l and tune .So this weekend i will try a 91 and 93 tune and then the c@l tune with intake . I had problems downloading the new tunes last weekend .But no cel lights.

HOTLAP

Rough life Porsche.....had time to kill at a friend's dyno shop WOW - I've got a couple of friends with pretty cool gas grills - but no dynos