1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Header vs straight pipe

Thread Tools
 
Search this Thread
 
Old 01-21-02, 02:07 PM
  #1  
EX Pres of DFW Drunks

Thread Starter
 
rx7gslse's Avatar
 
Join Date: Feb 2001
Location: DFW, TX/Mexico
Posts: 8,132
Likes: 0
Received 1 Like on 1 Post
Header vs straight pipe

Alright, I have a dilema. Currently I have a Bonez Cat on my car, but I'd like to buy a bolt in place straight pipe to replace it for most of the year... My question comes in here: How simple is it to install a bolt on header and then just switch out the stock manifold and Cat for the yearly tailpipe test? Should I go ahead and get just the cat replacement pipe, or go for the full header system?

TIA
Old 01-21-02, 02:58 PM
  #2  
The AUTO DOCTOR

 
BadAssRX-7's Avatar
 
Join Date: Mar 2001
Location: South Side of ATL. Ga.
Posts: 1,952
Likes: 0
Received 0 Likes on 0 Posts
well if it was me what i would do is get a mindtrain stage 5 header(same lenght as stock) and also get a cat replacement pipe. then just swap out the cat and the pipe when its smog time or not. i do this all the time
Old 01-22-02, 01:08 PM
  #3  
EX Pres of DFW Drunks

Thread Starter
 
rx7gslse's Avatar
 
Join Date: Feb 2001
Location: DFW, TX/Mexico
Posts: 8,132
Likes: 0
Received 1 Like on 1 Post
SO the mindtrain header is a direct replacement for the stock manifold and converters? I heard mindtrain sucks though, are any others direct bolts ups? How about any of the RB stuff?

Who sells mindtrain anyway?
Old 01-22-02, 05:02 PM
  #4  
the torquinator

iTrader: (1)
 
theNeanderthol's Avatar
 
Join Date: Nov 2001
Location: Las Cruces, NM
Posts: 951
Likes: 0
Received 2 Likes on 1 Post
Actually mindtrain is very good, in my opinion, but I have racingbeat headers, which are awesome. If you want to do custom exhaust, or pay for the pre-silencer, get racingbeat, if you want to just bolt it right up, go with mindtrain. They are both excellent.
Old 01-22-02, 07:42 PM
  #5  
Rotary Enthusiast

 
hotty's Avatar
 
Join Date: Oct 2001
Location: T.O
Posts: 898
Likes: 0
Received 0 Likes on 0 Posts
how much extra hp would slapping on a RB header and 2" exhaust - no cat w/ high flow muffler and a k+n air filter? This is on a 84 gsl-se 13b EFI.
Old 01-22-02, 08:56 PM
  #6  
Junior Member

 
toyman's Avatar
 
Join Date: Jan 2002
Location: South Carolina
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
exhaust

your headers and 2" exhaust would probably add lots of hp, but you couldn't hear yourself think with in 50 feet of the car. I tried that and at 7500rpm it sounded like a 747 on take off. you could probably deafen a harley rider. ended up putting a cat back in to shut the thing up a little.[QUOTE]
Old 01-23-02, 01:37 AM
  #7  
the torquinator

iTrader: (1)
 
theNeanderthol's Avatar
 
Join Date: Nov 2001
Location: Las Cruces, NM
Posts: 951
Likes: 0
Received 2 Likes on 1 Post
Same here man. I tried no cat once. I couldn't stand it. It hurt my ears in the car. It sounded like a sprint car. I revved it in town and immediately all the Honda boys from miles around revved their little 4 bangers.
Old 01-23-02, 01:42 AM
  #8  
smog nazi destroyer

 
riffraff's Avatar
 
Join Date: Jul 2001
Location: california
Posts: 1,681
Likes: 0
Received 1 Like on 1 Post
i have a header and a couple pre-scilencers and it is rather quiet. at idle, is is quiter than the stock exhaust, and under pressure it goes up to a really nice, but non obtrusive, sound...

problem though is smog. i had to rip of the entire exhaust manafold, air pump, and acv.. so i am going to have a bitch of a time getting everything back to normal, or finding a way to get it to pass emissions..

my .02
Old 01-23-02, 07:54 AM
  #9  
EX Pres of DFW Drunks

Thread Starter
 
rx7gslse's Avatar
 
Join Date: Feb 2001
Location: DFW, TX/Mexico
Posts: 8,132
Likes: 0
Received 1 Like on 1 Post
Alright then... I guess I'll look into mindtrain. I was getting it mixed up with pacesetter on the suckage...

Who sells mindtrain stuff? Anyone close to DFW? I don't see it listed on any of the normal vendors for stuff.

So would the RB streetable header and a presilencer bolt up?
Old 01-23-02, 04:37 PM
  #10  
EX Pres of DFW Drunks

Thread Starter
 
rx7gslse's Avatar
 
Join Date: Feb 2001
Location: DFW, TX/Mexico
Posts: 8,132
Likes: 0
Received 1 Like on 1 Post
^

who sells mindtrain? How much$$$?
Old 01-23-02, 08:41 PM
  #11  
Rotary Enthusiast

 
hotty's Avatar
 
Join Date: Oct 2001
Location: T.O
Posts: 898
Likes: 0
Received 0 Likes on 0 Posts
how much is lots of hp? a figure - like 50hp? Anyway, I have no cat now, 2 cheap mufflers, and it is real quiet, so would a header really make it that loud? Also, could I use the Racing Beat disassembled road race header kit to save money? $78 U.S. compared to $182 US for the streetable header.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
yetter227
2nd Generation Specific (1986-1992)
20
09-05-15 11:57 PM



Quick Reply: Header vs straight pipe



All times are GMT -5. The time now is 02:01 AM.