View Poll Results: "best" downpipe
HKS
30
24.59%
M2
36
29.51%
Pettit
20
16.39%
Mindtrain
2
1.64%
Other
25
20.49%
Rx7fashion
5
4.10%
N-tech
4
3.28%
Voters: 122. You may not vote on this poll
"best" downpipe
10-21-02, 05:01 PM
#1
Senior Member
Thread Starter
Join Date: Jul 2002
Location: Los Alamos, NM
Posts: 592
Likes: 0
Received 0 Likes
on
0 Posts
"best" downpipe
For those of us about to buy a downpipe, please give your opinion as to the "best".
Also, for your choice, please comment on:
1) Ease of install
2) Completeness (does it come with everything needed)
3) Fit/finish
4) Performance (does this really matter?)
5) Durability
6) Any other issues I need to think about
If this has been done before - Sorry I did a search on "best downpipe", and didn't find much (I thought it would be nice to have it all in one thread).
Also, for your choice, please comment on:
1) Ease of install
2) Completeness (does it come with everything needed)
3) Fit/finish
4) Performance (does this really matter?)
5) Durability
6) Any other issues I need to think about
If this has been done before - Sorry I did a search on "best downpipe", and didn't find much (I thought it would be nice to have it all in one thread).
10-21-02, 06:37 PM
#4
Speed Mach Go Go Go
iTrader: (2)
Join Date: Oct 2001
Location: My 350Z Roadster kicks my RX7's butt
Posts: 4,772
Likes: 0
Received 2 Likes
on
2 Posts
Fock Corksport! Here is where i'd like to shove their F'n dam freeken f*ck'n DP --> 
lying bastards 
Corksport didn't advertise theirs as an M2 replica but the owner assured me there was no stud issues, just like M2 when I asked via phone and e-mail ...yeah right!
Pettit - comes with replacement studs. Not a DIY DP in my opinion.
HKS- If you don't mind mild steel.
(it has a squished end just like the pre-cat)
RX7Fashion - Some one will have to confirm that this is a SS HKS replica?
RMS - Supposedly a M2 replica (can't confirm this)
M2 - has a different angle on the pipe
(worth the long wait & high price)
Panspeed and maybe a few other Japanese located company's make a HKS version in stainless steel for triple the cost.
top of the line - Mazdaspeed
stainless steel, squished end, dual pipes 2-into-1 just like headers but priced at $1k.
Last edited by GoRacer; 10-21-02 at 06:41 PM.
10-21-02, 06:46 PM
#5
Rotary Freak
Join Date: Jan 2002
Location: l.a.
Posts: 1,640
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by GoRacer
Fock Corksport! Here is where i'd like to shove their F'n dam freeken f*ck'n DP --> lying bastards
Corksport didn't advertise theirs as an M2 replica but the owner assured me there was no stud issues, just like M2 when I asked via phone and e-mail ...yeah right!
Pettit - comes with replacement studs. Not a DIY DP in my opinion.
HKS- If you don't mind mild steel.
(it has a squished end just like the pre-cat)
RX7Fashion - Some one will have to confirm that this is a SS HKS replica?
RMS - Supposedly a M2 replica (can't confirm this)
M2 - has a different angle on the pipe
(worth the long wait & high price)
Panspeed and maybe a few other Japanese located company's make a HKS version in stainless steel for triple the cost.
top of the line - Mazdaspeed
stainless steel, squished end, dual pipes 2-into-1 just like headers but priced at $1k.
Fock Corksport! Here is where i'd like to shove their F'n dam freeken f*ck'n DP --> lying bastards Corksport didn't advertise theirs as an M2 replica but the owner assured me there was no stud issues, just like M2 when I asked via phone and e-mail ...yeah right!
Pettit - comes with replacement studs. Not a DIY DP in my opinion.
HKS- If you don't mind mild steel.
(it has a squished end just like the pre-cat)
RX7Fashion - Some one will have to confirm that this is a SS HKS replica?
RMS - Supposedly a M2 replica (can't confirm this)
M2 - has a different angle on the pipe
(worth the long wait & high price)
Panspeed and maybe a few other Japanese located company's make a HKS version in stainless steel for triple the cost.
top of the line - Mazdaspeed
stainless steel, squished end, dual pipes 2-into-1 just like headers but priced at $1k.
10-21-02, 07:57 PM
#6
Rotary Enthusiast
The pettit one isnt that hard to install. I did it myself at age 17 for gods sake! You just have to jack up that side of the engine a wee bit to slide it over one bolt. I didnt replace any bolts.
10-21-02, 09:05 PM
#7
Speed Mach Go Go Go
iTrader: (2)
Join Date: Oct 2001
Location: My 350Z Roadster kicks my RX7's butt
Posts: 4,772
Likes: 0
Received 2 Likes
on
2 Posts
I don't have mechanics experience. My bro-in-law allways used to work on my car. Not everyone here has experience even at twice your age. I don't tell data entry users that computers are easy. Something is only easy when you have experience with or knowlegde of.
As far as Pettit's DP, I don't understand your reply. Studs are stock, not bolts. The problem is "not" slipping the studs through the holes of the DP but getting a nut on all four. If you didn't have any problems removing the studs that's great but there are 100 who did for every one of you.
As far as Pettit's DP, I don't understand your reply. Studs are stock, not bolts. The problem is "not" slipping the studs through the holes of the DP but getting a nut on all four. If you didn't have any problems removing the studs that's great but there are 100 who did for every one of you.
Trending Topics
10-21-02, 10:04 PM
#8
Rotary Enthusiast
sorry, I guess my comment was pretty ignorant. I didnt have to remove any of the 4 studs, I took a crowbar with a piece of wood inbetween the engine and the bar, loostened a motor mount and raised the turbo side of the engine up a bit and it allowed the downpipe to slip over all 4 studs (one of the studs is juuust to long for it to slip over without doing this ).
wait I just read on, so the problem is getting the bolts over the studs after the downpipe is over the 4 bolts?
Steve
wait I just read on, so the problem is getting the bolts over the studs after the downpipe is over the 4 bolts?
Steve
10-21-02, 10:41 PM
#10
Speed Mach Go Go Go
iTrader: (2)
Join Date: Oct 2001
Location: My 350Z Roadster kicks my RX7's butt
Posts: 4,772
Likes: 0
Received 2 Likes
on
2 Posts
Originally posted by Rx-7$4$me
wait I just read on, so the problem is getting the bolts over the studs after the downpipe is over the 4 bolts?
Steve
wait I just read on, so the problem is getting the bolts over the studs after the downpipe is over the 4 bolts?
Steve
The stud looks like a bolt without the head. The nut is what you screw on to the bolt or stud to tighten it down. The pipe bends over one of the four studs and actually hits the DP, preventing it from being screw down flush and tight. I can fix the problem using a rotozip thing and saw off 1/2 or 3/4's of the stud (sticks out like 2"). Some guys are lucky and can remove the stud to replace them with a short, high tempered bolt. The Pettit DP comes with bolts.
Here is the problem: You try to remove the stud to replace it with a bolt but it's stuck so tight it snaps off at the flange. Not enough sticks out to put a nut on. Now you have to drill it out. There is barely enough room for your hand much less a drill. At this point, would you consider this a DIY bolt on kit?
10-21-02, 10:50 PM
#11
1993 RX7 R1
Join Date: Jul 2001
Location: SoCal
Posts: 1,266
Likes: 0
Received 0 Likes
on
0 Posts
In my mind, Tripoint Engineering makes the best downpipe.
No issues whatsoever with installation and they had this figured out >5 years ago.
No issues whatsoever with installation and they had this figured out >5 years ago.
Last edited by Mr. Stock; 10-21-02 at 11:04 PM.
10-22-02, 12:51 AM
#13
Rotary Enthusiast
Join Date: Aug 2001
Location: Memphis, TN - wishin' i was back in Ft Worth
Posts: 1,024
Likes: 0
Received 1 Like
on
1 Post
goracer send me a pic of your avatar. i want a full size one.....not that little thing...PLEASE!!!!!
spoolin7@midsouth.rr.com
oh yeah, pettit dp
spoolin7@midsouth.rr.com
oh yeah, pettit dp
10-22-02, 01:01 AM
#14
1993 RX7 R1
Join Date: Jul 2001
Location: SoCal
Posts: 1,266
Likes: 0
Received 0 Likes
on
0 Posts
Originally posted by GoRacer
Here is the problem: You try to remove the stud to replace it with a bolt but it's stuck so tight it snaps off at the flange. Not enough sticks out to put a nut on. Now you have to drill it out. There is barely enough room for your hand much less a drill. At this point, would you consider this a DIY bolt on kit?
Here is the problem: You try to remove the stud to replace it with a bolt but it's stuck so tight it snaps off at the flange. Not enough sticks out to put a nut on. Now you have to drill it out. There is barely enough room for your hand much less a drill. At this point, would you consider this a DIY bolt on kit?
10-22-02, 01:18 AM
#16
Speed Mach Go Go Go
iTrader: (2)
Join Date: Oct 2001
Location: My 350Z Roadster kicks my RX7's butt
Posts: 4,772
Likes: 0
Received 2 Likes
on
2 Posts
Originally posted by Mr. Stock
Did this happen after I left?
Did this happen after I left?
Last edited by GoRacer; 10-22-02 at 01:22 AM.
10-22-02, 01:19 AM
#17
Speed Mach Go Go Go
iTrader: (2)
Join Date: Oct 2001
Location: My 350Z Roadster kicks my RX7's butt
Posts: 4,772
Likes: 0
Received 2 Likes
on
2 Posts
Originally posted by Mr. Stock
BTW, if anybody is interested, I will be selling my Jethot 2000 coated Tripoint downpipe in 2-3 weeks.
BTW, if anybody is interested, I will be selling my Jethot 2000 coated Tripoint downpipe in 2-3 weeks.
10-22-02, 01:56 AM
#18
Speed Mach Go Go Go
iTrader: (2)
Join Date: Oct 2001
Location: My 350Z Roadster kicks my RX7's butt
Posts: 4,772
Likes: 0
Received 2 Likes
on
2 Posts
Question asked in Japan section:
Laujesse2
We cannot use the ones from the states, we wish we could because they are smoother flowin and eaiser to install. We have the stering colomn in the way over here. That is why they are smushed and it is not ideal but nesssary. If you must have the smushed one feed and RE‚¦@are made out better quality material, but they all do the same thing...
10-22-02, 02:51 AM
#19
Senior Member
Join Date: Dec 2001
Location: The Land Of No Pistons
Posts: 691
Likes: 0
Received 0 Likes
on
0 Posts
Remember any of the Japanese produced down pipes will not flow as well as most of the US ones. Not saying that they are bad or anything I had a Mindtrain, which was a copyof the, HKS one when I was twin.
BUT the Japanese downpipes are designed for RHD cars and that is why the collector is flat and crimped...so that it won't hit the steering colum.
Now on US cars you don't have to worry about it and so the US made down pipes can have a larger bend there.
Just my 2 cents.
Chris
BUT the Japanese downpipes are designed for RHD cars and that is why the collector is flat and crimped...so that it won't hit the steering colum.
Now on US cars you don't have to worry about it and so the US made down pipes can have a larger bend there.
Just my 2 cents.
Chris
Last edited by RotaryKnight; 10-22-02 at 02:54 AM.
10-22-02, 08:02 AM
#22
Speed Mach Go Go Go
iTrader: (2)
Join Date: Oct 2001
Location: My 350Z Roadster kicks my RX7's butt
Posts: 4,772
Likes: 0
Received 2 Likes
on
2 Posts
All of them will have the O2 bunge pre welded before purchase. M2 will weld another upon request and additonal fee. Most others brands wont. The 2nd bunge can be used for wide band dyno tuning or for EGT.
10-22-02, 08:32 AM
#24
Senior Member
Join Date: Sep 2001
Location: Maryland
Posts: 292
Likes: 0
Received 0 Likes
on
0 Posts
I have the N-Tech pipe. Fit was very good, studs are replaced with bolts.
BTW, for removing the studs, use a lot of penetrating oil, let sit over night, then take your time. They will come out.
Mark
BTW, for removing the studs, use a lot of penetrating oil, let sit over night, then take your time. They will come out.
Mark
