How much HP?
If you look (and trust, which i don't) at the Manufacturer-provided dynos, We're talking 9-10Whp for the CAI, another 9-10Whp for the Magnaflow, and maybe 15Whp for the Diablo...(don't remember seeing their Dyno sheet, though). All that said, they're claiming a possible low-end 33 WHP, which would translate to about 41Chp before driveline loss.
What do you think the REAL gains are here?
So, conservatively, I'd say we got about 25hp more with the 3 items put together...
just my 2 pennies...
06MonteSS / DiabLew Tune

2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
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write off 2006 Impala SS Since 1971 the test procedure for rating engines (while changing some of the details from time to time) has the power rated at the input of the transmission with all the accessories attached, a full exhaust (and the a/c equipment, if standard, declutched). A manufacturer can remove an accessory if, and only if, they subtract its parasitic loses from the final figure. Intakes are also installed.
the 2004 SAE standard (http://www.mazda6tech.com/images/dyno/sae.pdf) is what our cars are rated with. So the transmission/final drive is the only real non-crank loss (as far as the test goes). Opening up the exhaust will change the rating of the engine at the crank. Seems non-sensical, but following the test procedure would give a new crank reading as the exhaust loss is an integral part of the rating, same for the intake.
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