Notices
C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Just curious: Headers, X-pipe necessary?

 
Old 07-14-2019, 07:49 AM
  #21  
jonjoy
CF Senior Member
 
jonjoy's Avatar
 
Member Since: Sep 2018
Location: Auburn Al
Posts: 166
Received 20 Likes on 17 Posts
Default

Originally Posted by Turbo6TA View Post
When my 2011 GS (A6) was bone stock, it made 371 RWHP

Installed headers and x-pipe with cats and a dyno tune ... It made 405 RWHP on the same dyno

+ 34 RWHP gain
the only way this would be believable is if you would have tuned it first, but you didn't. if you had just tuned it first you would have found yourself at the 400 make any way. if you look at the stock manifolds they look like cast shorty headers, and they work pretty well too, I love that everyone thinks they know something that GM doesn't
jonjoy is offline  
Old 07-14-2019, 09:50 AM
  #22  
Turbo6TA
CF Senior Member
 
Turbo6TA's Avatar
 
Member Since: Mar 2011
Location: Florida
Posts: 7,782
Received 630 Likes on 498 Posts
Default

There is no way in hell that you can take a bone stock LS3 and get an extra 30 RWHP from just a dyno tune.

Not going to happen
Turbo6TA is offline  
The following users liked this post:
NYC6 (07-14-2019)
Old 07-14-2019, 12:09 PM
  #23  
Mike's LS3
CF Senior Member
 
Mike's LS3's Avatar
 
Member Since: Nov 2007
Location: Bay Area CA
Posts: 3,517
Received 195 Likes on 176 Posts
Default

Originally Posted by MTPZ06 View Post
C6 Z06 and ZR1 mid pipes are 3", and '06-'10 C6 Z06 came with H pipe, 2011+ came with X-pipe...but the '12/'13 models have the extra 2 cats attached before the X. '09-'13 C6 ZR1 came with X pipe, but again the '12/13' models have the 2 extra cats. No idea on Base/GS for H versus X, but pipe diameter is 2.5" for all years.
The base 2008+ C6 corvettes came with "X" pipes. I believe the base pre 2008 came with "H" pipes.

Having had both, the biggest difference between the two are more for sound than power. Normally, H pipe will have a deeper sound than the X pipe. The X pipe does a better job scavenging exhaust at higher rpm and the H pipe at lower rpm. Comparing the two, expect 1-3 average HP from the X pipe and the same for the H pipe in average torque.

Last edited by Mike's LS3; 07-14-2019 at 12:09 PM.
Mike's LS3 is offline  
Old Yesterday, 10:36 AM
  #24  
jonjoy
CF Senior Member
 
jonjoy's Avatar
 
Member Since: Sep 2018
Location: Auburn Al
Posts: 166
Received 20 Likes on 17 Posts
Default

Originally Posted by Turbo6TA View Post
There is no way in hell that you can take a bone stock LS3 and get an extra 30 RWHP from just a dyno tune.

Not going to happen
it happens all the time, my LS2 stock 347 after the first tune 379 talk to a tuner now your gonna tell me my LS2 heads cam intake can't be putting 500 to the rear tire, it is
jonjoy is offline  

Thread Tools
Search this Thread
Quick Reply: Just curious: Headers, X-pipe necessary?


Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: