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Stock exhaust specs
-catted downpipes: 3.0" outlets
-X-pipe: 3.0" inlets w/3" cats*, reduces to 2.75" immediately post-cats, single 2.75" X-crossover, expands to 2.875" at the outlets to slip over the axle-back pipes
-NPP axle-back: 2.75" inlets
The stock X-pipe weighs in at 22.6 lbs, which includes the clamps (welded on) so for comparison sake I'll subtract 1 lb. and call the stock X-pipe to be an equivalent of 21.6 lbs.
*The factory X-pipe cats are not monitored so they can be removed without throwing any check engine lights or error codes.
Borla X-pipe specs
-3.0" inlets, smooth taper to 2.75" after the inlet flange
-2.75" piping with the exception of the in/outlets
-single 2.75" X-crossover
-explands to 2.875" at the outlet to slip over the factory axle-back.
-15.8 lbs for a savings of 5.8 lbs vs. stock
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
I really need to stay off these threads. The frik'n car was just ordered this past week and I've already bought 3 ball caps, a cover for the second top, splash guards, cargo divider from Exotic Vette, all weather floor mats and now an x-pipe ..............
I really need to stay off these threads. The frik'n car was just ordered this past week and I've already bought 3 ball caps, a cover for the second top, splash guards, cargo divider from Exotic Vette, all weather floor mats and now an x-pipe ..............
I really need to stay off these threads. The frik'n car was just ordered this past week and I've already bought 3 ball caps, a cover for the second top, splash guards, cargo divider from Exotic Vette, all weather floor mats and now an x-pipe ..............
Just wait... it gets worse......The list of things you want to do, will never get shorter than the list of things you have done!
I think if I were to change my plate it would read "MONY PIT"
Man I love this car!
BTW...I love my Borla Atak and X-pipe!! Really woke the car up! Amazing sound!
-M
Last edited by managerman; Nov 17, 2015 at 08:52 AM.
Is this x pipes diameter larger then the stock x pipe?
See below.
Originally Posted by Kracka
Stock exhaust specs
-catted downpipes: 3.0" outlets
-X-pipe: 3.0" inlets w/3" cats*, reduces to 2.75" immediately post-cats, single 2.75" X-crossover, expands to 2.875" at the outlets to slip over the axle-back pipes
-NPP axle-back: 2.75" inlets
The stock X-pipe weighs in at 22.6 lbs, which includes the clamps (welded on) so for comparison sake I'll subtract 1 lb. and call the stock X-pipe to be an equivalent of 21.6 lbs.
*The factory X-pipe cats are not monitored so they can be removed without throwing any check engine lights or error codes.
Borla X-pipe specs
-3.0" inlets, smooth taper to 2.75" after the inlet flange
-2.75" piping with the exception of the in/outlets
-single 2.75" X-crossover
-explands to 2.875" at the outlet to slip over the factory axle-back.
-15.8 lbs for a savings of 5.8 lbs vs. stock
Give us a call @ 443-730-9438...we are always glad to "help" members
Question: I have a 2015 z51 manual with a full carbon Halltech CAI, ARH mid length headers with cats and a cat back B & B Bullet exhaust. I am thinking of putting in the Borla x-pipe. I removed the NPP valves and actuators. Will the car be much louder then it is now and is there any downside to adding the x-pipe?
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
Originally Posted by Kracka
It's a disease!!!
No lie. I also ordered the aFe dry intake for a great price on Cyber Monday .............. I really gotta stop this before I fill up the storage shed again with parts like I did from the C6.
Just wait... it gets worse......The list of things you want to do, will never get shorter than the list of things you have done!
I think if I were to change my plate it would read "MONY PIT"
Man I love this car!
BTW...I love my Borla Atak and X-pipe!! Really woke the car up! Amazing sound!
-M
I agree with you on the money pit. After putting over 45,k in the c5 new motor, rear end, & trans & other parts. I told myself with this c7 wasn't going to do much at all well here I go on the mods again.
....The list of things you want to do, will never get shorter than the list of things you have done!
I really gotta stop this before I fill up the storage shed again with parts like I did from the C6. 
I agree with you on the money pit. After putting over 45,k in the c5 new motor, rear end, & trans & other parts. I told myself with this c7 wasn't going to do much at all well here I go on the mods again.