Loss of Power? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Galonso$* · 01-30-2017, 02:51 PM

So im wondering if it's true that I've lost power due to my my exhaust setup. A friend was telling me I've lost power because of the all the free flowing air so I'm looking to see if this is true. I have complete straights Pipes no muffler or resonator with some LT kook headers. So if I have lost power how much have I lost? (L99 SS btw)

InFiD3ViL · 01-30-2017, 08:25 PM

So once I had installed my headers I had the same setup.

It 'felt' like I lost a little bottom end torque. That didn't bother me as much as the Nascar Pit-Lane level of noise the long tubes/muffler delete/resonator delete produced. Not only was it insanely loud, I could not stand how raspy it became, as I also have no cats.

So I bought the Legato axle back and definitely feel that I got that low end TQ back again. Plus, now it sounds amazing...not including the drone I now have.

So yes, you can lose a little bit of TORQUE on the bottom end. But Power? No. Adding Longtubes will give you a heap of top end power. You should not even have to ask. You should be able to feel this on your own, as I know I did.

But that begs the question...did you get a tune or have your X4 selected for the long tubes? Because you are leaving power on the table if you didn't. The long tubes will generally cause a lean condition with your AFR unless tuned accordingly.

pyroguy · 02-02-2017, 11:43 AM

Your friend is crazy, but you should get a tune to optimize your power. Best thing I ever did to my L99 car was get it a tune. You'll think you have a while new car!

BurnedRubber · 02-02-2017, 12:03 PM

Headers are amazing, headers and a tune is what god intended for us to do. lol

maddoggyusa · 02-02-2017, 01:09 PM

probably 20 years ago in Super Chevy, they proved that you got more power with a flowmaster muffler versus straight pipe (no muffler). You would think restriction is bad... but there is some amount of backpressure needed that actually helps flow. I don't think it's a huge amount (maybe 5 hp), but it was very interesting at the time for me.

01-30-2017, 02:51 PM	#1
Galonso$* Drives: 2012 Camaro SS/RS Join Date: Feb 2016 Location: Princeton, KY Posts: 24	Loss of Power? So im wondering if it's true that I've lost power due to my my exhaust setup. A friend was telling me I've lost power because of the all the free flowing air so I'm looking to see if this is true. I have complete straights Pipes no muffler or resonator with some LT kook headers. So if I have lost power how much have I lost? (L99 SS btw) __________________ 2012 Camaro 2SS L99, LT KOOKs Headers with Highflow Cats, Straight Piped, BTR Stage 2 Cam w/ tune and DOD/AFM delete

01-30-2017, 08:25 PM	#2
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,737	So once I had installed my headers I had the same setup. It 'felt' like I lost a little bottom end torque. That didn't bother me as much as the Nascar Pit-Lane level of noise the long tubes/muffler delete/resonator delete produced. Not only was it insanely loud, I could not stand how raspy it became, as I also have no cats. So I bought the Legato axle back and definitely feel that I got that low end TQ back again. Plus, now it sounds amazing...not including the drone I now have. So yes, you can lose a little bit of TORQUE on the bottom end. But Power? No. Adding Longtubes will give you a heap of top end power. You should not even have to ask. You should be able to feel this on your own, as I know I did. But that begs the question...did you get a tune or have your X4 selected for the long tubes? Because you are leaving power on the table if you didn't. The long tubes will generally cause a lean condition with your AFR unless tuned accordingly. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

02-02-2017, 11:43 AM	#3
pyroguy Started#gottalovethatblue Drives: ABM #832 Join Date: Apr 2013 Location: GA Posts: 7,088 View My Garage	Your friend is crazy, but you should get a tune to optimize your power. Best thing I ever did to my L99 car was get it a tune. You'll think you have a while new car! __________________ '10 Camaro 2SS/RS \| Aqua Blue #832 of 3,903 \| Silver Stripes Check out my build thread

02-02-2017, 12:03 PM	#4
BurnedRubber Ben Rakers Drives: 2011 Camaro 2SS/RS Join Date: Oct 2014 Location: Illinois Posts: 405 View My Garage	Headers are amazing, headers and a tune is what god intended for us to do. lol __________________ 2011 Camaro 2SS/RS K&N Blackhawk Cold air intake, Hawk Performance Ceramic pads, BAER drilled and slotted rotors, Side louver black faded inserts, Hurst Short Throw Shifter, BMR Trailing Arms, Elite Engineering Catch Can, MSD Spark Plug Wires, Texas Speed 1 7/8in Headers and cat back, High Flow Cats, 3 inch X-Pipe, Speed Dawg shift knob, Tuned by Nickey. And oh, its My first car. https://www.youtube.com/channel/UC_L...5jF6EQEoKDNQ2g

02-02-2017, 01:09 PM	#5
maddoggyusa Drives: 2013 Camaro Dusk 2SS/6 Join Date: Sep 2013 Location: New Jersey Posts: 1,586	probably 20 years ago in Super Chevy, they proved that you got more power with a flowmaster muffler versus straight pipe (no muffler). You would think restriction is bad... but there is some amount of backpressure needed that actually helps flow. I don't think it's a huge amount (maybe 5 hp), but it was very interesting at the time for me.