NPP w/Long Tubes and x-pipe... - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

bigcountrypoppen · 04-26-2014, 08:45 AM

Looking at getting a set of long tubes w/ off road x pipe(no emissions in SE Georgia) for my '13 1LE. I do have the NPP exhaust on the car currently...do most long tubes fit the same piping diameter as the NPP system? Want to keep my NPP with the long tubes since I payed an extra grand for it, lol. Thanks for the help.

StormZ/28 · 04-26-2014, 09:23 AM

Stainless works makes some that fit oem piping

summit1le · 04-26-2014, 10:22 AM

Just installed sw. Incredibly loud!! Amazing.

TxBandit911 · 04-26-2014, 10:46 AM

I was looking at the TSP headers and 3" Xpipe and leaving the factory NPP mufflers...

MikeInAZ · 04-26-2014, 12:33 PM

bigcountrypoppen - If you haven't already read the thread from Chase at Apex, it is very informative regarding the selection of headers, mating up to NPP, etc.

http://www.camaro5.com/forums/showthread.php?t=288490

SS MPSTR · 04-26-2014, 02:04 PM

I just installed the ARH "short" system to the factory piping, and kept the NPP. I'm running cats still, and it sounds amazing. M2W switch is next.

Firefighter · 04-26-2014, 02:43 PM

I have the Pfadt (no longer available) they bolted right up. I personally thought the factory H-Pipe sounded great but way too loud for me. I'm 40 it would have been great when I was 20 though.

IMHO I would advise you just get LT's and evaluate what you want to do after you hear it running. You can pick up a Magnaflow universal X-pipe either non resonated or resonated (I got resonated to tone it down a bit) for $75-$125 and have it welded in cheap enough. Also you can leave it alone and run the factory H-Pipe.

The X-Pipe and H-Pipe do similar things supposedly the X builds more TQ. The X-Pipe also evens the tone out a little bit.

Really it's personal preference.

My car with the Pfadts and Hi Flow Cats and a MagnaFlow resonated X-Pipe into the NPP sounds like a deep low rumble at idle but under throttle it sounds like the Devil is coming to get you... lol

AGM 1LE · 04-26-2014, 05:09 PM

I put Kooks w/ cats on mine with dual mode. fits up to the stock system perfectly and sounds sick

g-money · 04-27-2014, 02:57 AM

Ditch the stock and get long tubes high flow cats and 3 inch exhaust. All from kooks. Sounds amazing. Tune it and you will have a beast.

g-money · 04-27-2014, 03:02 AM

Bought mine fromchase at apex. Saved a couple hunzo buying everything also cai apex scoop and washer bottle. Made 441rwhp and 451 rwtrq. With dyno tune.

Indydriver · 04-27-2014, 05:26 AM

One of the best pieces of advice I picked up on this forum regarding LTs was to choose your tuner first because they are the most critical variable in the process. Most tuners will have a preference for certain pipes based on experience for fit and performance.

In my case, that preference is for ARH. They have a variety of proven systems to achieve the result you want. They are high quality and 100% made in America, if that is important to you. Like anything else, they will cost more than the Chinese stuff. Because I have a convertible and want only a modest increase in sound plus do not want to disturb factory bracing or NPP, we decided to go with CA78SHWC which is the product code for 1-7/8", short connection with HF cats. This system leaves the factory 2-1/2" H mid-pipe and NPP in place. ARH also has a "to-the-axle" system which replaces the factory H pipe with a 3" X pipe which then feeds into the factory exhaust. This system is claimed to provide slightly more power and certainly more sound but leaves NPP in place. It sounds like this may be what you are looking for.

http://www.americanracingheaders.com...oSS+V8_V6.html

bigcountrypoppen · 04-27-2014, 08:25 AM

Thanks for all the helpful advice, looks like I may be going with hi-flow cats after all. Will definitely be doing some extensive "YouTube research" in figuring out which sound I like the best...thanks for y'all's time and help. Hooyah motivator out!

04-26-2014, 08:45 AM	#1
bigcountrypoppen Drives: Rally Yellow 13' 1SS1LE Join Date: Apr 2014 Location: Kingsland, GA Posts: 10 View My Garage	NPP w/Long Tubes and x-pipe... Looking at getting a set of long tubes w/ off road x pipe(no emissions in SE Georgia) for my '13 1LE. I do have the NPP exhaust on the car currently...do most long tubes fit the same piping diameter as the NPP system? Want to keep my NPP with the long tubes since I payed an extra grand for it, lol. Thanks for the help.

04-26-2014, 10:22 AM	#3
summit1le Drives: 15 Lexus RCF, 17 Vette Grand Sport Join Date: Apr 2013 Location: South Florida Posts: 549	Just installed sw. Incredibly loud!! Amazing. __________________ 2013 Summit 1SS 1LE w/NPP, SW 1 7/8" Long Tube Headers, CAI Intake, Ported TB, Cammotion 224/232 113 LSA, BTR Valvetrain, Melling Oil Pump, 468 HP 423, Apex Catch Can, Tank Plates, RPM 4 Point Roll Bar with SCCA/NASA Cross Brace, Schroth 6 Point Han's Harness, OMP WRC Front Seats, F.M.T Trailing Arms, F.M.T Solid Aluminum Subframe Bushings, Moreno Motorsports Camber Plates, BMR Bushings Front and Rear, Essex/AP Racing Radi-Cal Endurance Front Brakes, Quantum Brake Cooling Ducts, ZL1 Rockers, ZL1 Air Deflectors, Heritage Grill, Pfadt Springs.

04-26-2014, 12:33 PM	#5
MikeInAZ Drives: 2014 Camaro 2SS/RS 1LE, AGM Join Date: Mar 2014 Location: AZ Posts: 332 View My Garage	bigcountrypoppen - If you haven't already read the thread from Chase at Apex, it is very informative regarding the selection of headers, mating up to NPP, etc. http://www.camaro5.com/forums/showthread.php?t=288490 __________________ Roto-Fab CAI, #8 Fuse Pull, 1LE Emblems, misc cosmetic changes, and a mod list that is a mile long.

04-26-2014, 02:04 PM	#6
SS MPSTR Resident Artichoke Drives: 14 1LE, 97 Z28, 07 Z06, 67 Chev SS Join Date: Dec 2013 Location: SoCal Posts: 55	I just installed the ARH "short" system to the factory piping, and kept the NPP. I'm running cats still, and it sounds amazing. M2W switch is next. __________________ 2014 Camaro SS 1LE, 2016 Z06 Corvette, 1997 Camaro Z28, 1967 Chevelle SS

04-26-2014, 02:43 PM	#7
Firefighter Drives: Black '13 2SS/RS/1LE w/NPP/NAV Join Date: Oct 2012 Location: Tampa by way of Miami... Posts: 4,934	I have the Pfadt (no longer available) they bolted right up. I personally thought the factory H-Pipe sounded great but way too loud for me. I'm 40 it would have been great when I was 20 though. IMHO I would advise you just get LT's and evaluate what you want to do after you hear it running. You can pick up a Magnaflow universal X-pipe either non resonated or resonated (I got resonated to tone it down a bit) for $75-$125 and have it welded in cheap enough. Also you can leave it alone and run the factory H-Pipe. The X-Pipe and H-Pipe do similar things supposedly the X builds more TQ. The X-Pipe also evens the tone out a little bit. Really it's personal preference. My car with the Pfadts and Hi Flow Cats and a MagnaFlow resonated X-Pipe into the NPP sounds like a deep low rumble at idle but under throttle it sounds like the Devil is coming to get you... lol __________________ My Build Thread... http://www.camaro5.com/forums/showthread.php?t=285054

04-26-2014, 09:23 AM	#2
StormZ/28 Drives: Camaro Z/28 Join Date: Apr 2014 Location: La Joya TX Posts: 196	Stainless works makes some that fit oem piping

04-26-2014, 10:46 AM	#4
TxBandit911 Call Me"Doc" Drives: 2014 2SS/RS 1LE BLACK Join Date: Apr 2009 Location: Ft Riley, Kansas Posts: 890	I was looking at the TSP headers and 3" Xpipe and leaving the factory NPP mufflers...

04-26-2014, 05:09 PM	#8
AGM 1LE Drives: 14 SS/ 1LE Join Date: Jun 2013 Location: parts unknown Posts: 937	I put Kooks w/ cats on mine with dual mode. fits up to the stock system perfectly and sounds sick

04-27-2014, 02:57 AM	#9
g-money Drives: 2013 camaro 1ss 1le 2011 Silverado Join Date: Sep 2013 Location: akwesasne ny Posts: 18	Ditch the stock and get long tubes high flow cats and 3 inch exhaust. All from kooks. Sounds amazing. Tune it and you will have a beast.

04-27-2014, 03:02 AM	#10
g-money Drives: 2013 camaro 1ss 1le 2011 Silverado Join Date: Sep 2013 Location: akwesasne ny Posts: 18	Bought mine fromchase at apex. Saved a couple hunzo buying everything also cai apex scoop and washer bottle. Made 441rwhp and 451 rwtrq. With dyno tune.

04-27-2014, 05:26 AM	#11
Indydriver Drives: '14 2SS/RS Vert 6M/KTU/NPP/DTA/ARH Join Date: Jan 2014 Location: Indianapolis Posts: 2,826	One of the best pieces of advice I picked up on this forum regarding LTs was to choose your tuner first because they are the most critical variable in the process. Most tuners will have a preference for certain pipes based on experience for fit and performance. In my case, that preference is for ARH. They have a variety of proven systems to achieve the result you want. They are high quality and 100% made in America, if that is important to you. Like anything else, they will cost more than the Chinese stuff. Because I have a convertible and want only a modest increase in sound plus do not want to disturb factory bracing or NPP, we decided to go with CA78SHWC which is the product code for 1-7/8", short connection with HF cats. This system leaves the factory 2-1/2" H mid-pipe and NPP in place. ARH also has a "to-the-axle" system which replaces the factory H pipe with a 3" X pipe which then feeds into the factory exhaust. This system is claimed to provide slightly more power and certainly more sound but leaves NPP in place. It sounds like this may be what you are looking for. http://www.americanracingheaders.com...oSS+V8_V6.html __________________ Consensus is, by definition, a lack of leadership.

04-27-2014, 08:25 AM	#12
bigcountrypoppen Drives: Rally Yellow 13' 1SS1LE Join Date: Apr 2014 Location: Kingsland, GA Posts: 10 View My Garage	Thanks for all the helpful advice, looks like I may be going with hi-flow cats after all. Will definitely be doing some extensive "YouTube research" in figuring out which sound I like the best...thanks for y'all's time and help. Hooyah motivator out!