custom down pipes for shorty headers
Thread Starter
Junior Member
Joined: Apr 2007
Posts: 61
Likes: 0
From: Fall River , MA
Car: 1986 Trans-Am
Engine: chevy 350
Transmission: TH350
custom down pipes for shorty headers
I bought a set of summit shorty headers for my car.Come to find out that they don't make down pipes for dual exhaust for the shorty's.So i had to bend some tubing to the bend i need.I took the tubing to a muffler shop and told them that i needed these bend on 2-1/4" Pipe.So they did and only charged me $90.00 which i thought was really cheap.The passenger side was perfect the driver side i still had to modify where it bolts to header.I had to cut a 22-1/2 angle on the pipe that way the pipe doesn't hit the ground.Here's some pics of the pipes.I will be posting some pic of the pipes installed.What do you guys think
Joined: Jan 2006
Posts: 1,489
Likes: 0
From: Flowood,MS
Car: 87 IROC Z
Engine: 5.7 L98 TPI
Transmission: 700r4,2500 stall
Axle/Gears: G80,10 bolt 3.42's
Re: custom down pipes for shorty headers
2 1/4" Pipe seems kinda small.Especially with the crush bends.I could be wrong but IIRC the summit shorties sre flowtech or very similar which = not good flowing and not good for performance.I just took my flowjunks off and replaced them with some hookers going to single 3' I pipe.Basicaly follows stock setup after cat.Single 3' is supposed to be good up to around 400 hp and better flowing than the 2 smaller pipes.I just bought some 3' bends and am about to have my y pipe welded up.
Senior Member
Joined: Feb 2009
Posts: 885
Likes: 0
From: USA
Car: 1989 SS
Engine: LT1+1500$ hooker exhaust
Transmission: T56
Axle/Gears: 3.42 bogger
Re: custom down pipes for shorty headers
I bought a set of summit shorty headers for my car.Come to find out that they don't make down pipes for dual exhaust for the shorty's.So i had to bend some tubing to the bend i need.I took the tubing to a muffler shop and told them that i needed these bend on 2-1/4" Pipe.So they did and only charged me $90.00 which i thought was really cheap.The passenger side was perfect the driver side i still had to modify where it bolts to header.I had to cut a 22-1/2 angle on the pipe that way the pipe doesn't hit the ground.Here's some pics of the pipes.I will be posting some pic of the pipes installed.What do you guys think
Supreme Member
Joined: Jan 2009
Posts: 1,126
Likes: 0
From: Columbus Ohio
Car: 91 Z28,64ImpalaSS4094spd,67 Galaxy
Engine: Dart 415Profiler hd,cmprlrs,Hlly750
Transmission: Built 700R4, 3200 stall
Axle/Gears: 3:89 Moser 9"
Re: custom down pipes for shorty headers
Pics would be good. I plan on doing something similar to this soon. I have shorties and will be going to true duals, am finished w/this Y-pipe stuff.
Thread Starter
Junior Member
Joined: Apr 2007
Posts: 61
Likes: 0
From: Fall River , MA
Car: 1986 Trans-Am
Engine: chevy 350
Transmission: TH350
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