C3 x-pipe clearance
Thread Starter
Advanced
Joined: Sep 2003
Posts: 70
Likes: 0
From: kansas city MO
C3 x-pipe clearance
Does anyone have an X-pipe on a C3? The muffler shop was giving me grief when I showed him the pictures and pipes. Sounded like he didn't want to really attempt it. I'm thinking there is at least 4+' to make the x junction after that center crossmember. Anyone that can share a picture would be smiled upon.
Melting Slicks
Joined: Nov 2001
Posts: 2,659
Likes: 7
From: Katy (Houston) TX
CI 7-8 Veteran
My advice: go to another shop!
Here is my 3" system with 3" x-pipe. Make sure you've got some disconnects in front of the x-pipe if you need to drop the exhaust to do any tranny work. There's different ways to do it but I used band clamps.
Here is my 3" system with 3" x-pipe. Make sure you've got some disconnects in front of the x-pipe if you need to drop the exhaust to do any tranny work. There's different ways to do it but I used band clamps.
Racer
Joined: Feb 2006
Posts: 324
Likes: 0
From: South Elgin IL
Check this out: http://pypesexhaust.com/sys-vette1.html
I don't have this system, but I did catch it on the net.
I don't have this system, but I did catch it on the net.
Advanced
Joined: May 2006
Posts: 89
Likes: 0
From: Derby Kansas
I don't have a photo, but I put a 2 1/2' on my '73, very similar to what Travis shows. Just behind the trans. I have a 350 with 700R4. It's not hard. Hell, if I did it, it can't be hard. :-) Try a different shop.
-Jim
-Jim
Burning Brakes
Joined: Dec 2003
Posts: 1,004
Likes: 7
From: Adelaide South Australia
this was on my 68...
2.5" system, with detachable pipes in front of cross member.
X-pipe with 2.5" Magnaflows at rear.
I had it on the car for 2 weeks, then removed it.
Had a very annoying drone from 1200 to 2200 rpm. Couldn't stand it.
Also the X-pipe made it sound like a late model chev...
Gone back to a straight 2.5" twin system.
If you do want to eliminate the drone with a free flowing X-pipe system with Magnaflows, you might consider fitting some bullet mufflers after the X-pipe, but before the rear axle. Finding a short enough bullet (9") that will fit may be the problem though.... One member here cut a 18" stainless steel bullet in half and welded the ends to suit.
He was quite happy with the end result. Ground clearance does become an issue though.
2.5" system, with detachable pipes in front of cross member.
X-pipe with 2.5" Magnaflows at rear.
I had it on the car for 2 weeks, then removed it.
Had a very annoying drone from 1200 to 2200 rpm. Couldn't stand it.
Also the X-pipe made it sound like a late model chev...
Gone back to a straight 2.5" twin system.
If you do want to eliminate the drone with a free flowing X-pipe system with Magnaflows, you might consider fitting some bullet mufflers after the X-pipe, but before the rear axle. Finding a short enough bullet (9") that will fit may be the problem though.... One member here cut a 18" stainless steel bullet in half and welded the ends to suit.
He was quite happy with the end result. Ground clearance does become an issue though.
Drifting
Joined: Oct 2005
Posts: 1,527
Likes: 148
From: East London/SW Essex UK
this was on my 68...
2.5" system, with detachable pipes in front of cross member.
X-pipe with 2.5" Magnaflows at rear.
I had it on the car for 2 weeks, then removed it.
Had a very annoying drone from 1200 to 2200 rpm. Couldn't stand it.
Also the X-pipe made it sound like a late model chev...
Gone back to a straight 2.5" twin system.
If you do want to eliminate the drone with a free flowing X-pipe system with Magnaflows, you might consider fitting some bullet mufflers after the X-pipe, but before the rear axle. Finding a short enough bullet (9") that will fit may be the problem though.... One member here cut a 18" stainless steel bullet in half and welded the ends to suit.
He was quite happy with the end result. Ground clearance does become an issue though.
2.5" system, with detachable pipes in front of cross member.
X-pipe with 2.5" Magnaflows at rear.
I had it on the car for 2 weeks, then removed it.
Had a very annoying drone from 1200 to 2200 rpm. Couldn't stand it.
Also the X-pipe made it sound like a late model chev...
Gone back to a straight 2.5" twin system.
If you do want to eliminate the drone with a free flowing X-pipe system with Magnaflows, you might consider fitting some bullet mufflers after the X-pipe, but before the rear axle. Finding a short enough bullet (9") that will fit may be the problem though.... One member here cut a 18" stainless steel bullet in half and welded the ends to suit.
He was quite happy with the end result. Ground clearance does become an issue though.
Thread Starter
Advanced
Joined: Sep 2003
Posts: 70
Likes: 0
From: kansas city MO
Thanks for the photo's guys. I currently have a drone anyway with flowmaster 40's, it's a little higher at 1500-2500 RPM though. Someone told me (on here) that the Xpipe helped to minimize his drone with those same flowmasters. I do appreciate all the feedback and advice
Instructor
Joined: Mar 2001
Posts: 117
Likes: 8
From: SWFL
I have a couple of pics uploaded on the 'My Corvette Photos' link. 3" X pipe located behind crossmember and driveshaft loop. No drone with SuperTurbos or the current UltraFlos. I used the ball type of connections at the header so I can drop the entire exhaust quickly (10 bolts).
Phil
Phil
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