Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

4"vs5"

Thread Tools
 
Search this Thread
 
  #1  
Old 09-22-2014, 07:24 PM
Walker.B's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Jun 2013
Location: Dadeville AL
Posts: 382
Likes: 0
Received 19 Likes on 19 Posts
Default 4"vs5"

hey fellas I'm about to order exhaust Friday and I can't decide 4" straight pipe with down pipe or 5" straight pipe with a down pipe the 4" is on sale so I could order it this week the 5" would have to wait to next week. what's better 4"or5" with a down pipe?
 
  #2  
Old 09-22-2014, 08:08 PM
4x4manonbroke's Avatar
Diesel Bomber
Join Date: Jun 2010
Location: Tacoma
Posts: 3,202
Received 142 Likes on 136 Posts
Default

4" DP with the rest as 5" .. the sound of 5" is incredible .. i like 4.. but my 5 sounds so much more brute like ..
 
  #3  
Old 09-24-2014, 05:22 PM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

i lvoed mt 5" dp. but it gets in the way with trans work tho
 
  #4  
Old 09-24-2014, 07:33 PM
Walker.B's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Jun 2013
Location: Dadeville AL
Posts: 382
Likes: 0
Received 19 Likes on 19 Posts
Default

how much in the way?
 
  #5  
Old 09-24-2014, 08:13 PM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

not too much, its just a little pain in the butt to work in that area.
 
  #6  
Old 09-24-2014, 09:18 PM
Walker.B's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Jun 2013
Location: Dadeville AL
Posts: 382
Likes: 0
Received 19 Likes on 19 Posts
Default

I'm thinking about a diamond eye kit 5" straight pipe and then put a MBRP down pipe later on when I have some extra cash any input on diamond eye kits?
 
  #7  
Old 09-24-2014, 09:46 PM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

its a piece of pipe when u straight pipe it
 
  #8  
Old 09-24-2014, 10:46 PM
Walker.B's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Jun 2013
Location: Dadeville AL
Posts: 382
Likes: 0
Received 19 Likes on 19 Posts
Default

looks like someone's been eating smarties what difference does a aftermarket down pipe make my trucks a Cali so my down pipe is smaller then fed trucks by a little
 
  #9  
Old 09-26-2014, 11:38 AM
2500HeavyDuty's Avatar
Super Moderator
Join Date: Oct 2007
Location: Houston, Tx
Posts: 14,872
Received 764 Likes on 627 Posts
Default

little bettre flow, sound changes a little, but tis a royal pain to go a lb7 downpipe
 
  #10  
Old 09-27-2014, 11:13 PM
Walker.B's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Jun 2013
Location: Dadeville AL
Posts: 382
Likes: 0
Received 19 Likes on 19 Posts
Default

just order they's parts Friday night what you fellas think? what's next on the list? have a cai and will soon have exhaust installed have a chip that work decent I know I'm going to need tires really soon any suggestions?? thanks!!

http://www.alligatorperformance.com/product-p/dde-k5118a-rp.htm

http://www.alligatorperformance.com/BKJC49-92019-P-MACHForce-XP-Tip-SS-304-p/bkjc49-92019-p.htm
 



All times are GMT -5. The time now is 06:13 PM.