true dual 305 set up, is this a good deal and will i benefit?
Thread Starter
Member
iTrader: (2)
Joined: Jun 2010
Posts: 482
Likes: 3
From: SE Houston TX
Car: 1986 Iroc-Z
Engine: 355
Transmission: 700R4
true dual 305 set up, is this a good deal and will i benefit?
hey guys i have until tomorrow evening to decide if i want to take up a muffler shops offer on a dual set up.
currently i have a mild 305 with shorty headers and a single 3" dynomax catback into a cherry bomb vortex (no cat)
they offered me to run two pipes next to eachother from the y pipe and dump before the rear axle with two dynomax bullets for $190. The piping would be 2 1/2 for each pipe, into 2 1/2 bullets.
Would it be worth it to swap into that set up and would i see any real gains/benefits from doing so?
i really dont want to lose any backpressure any help info on this is appreciated.
currently i have a mild 305 with shorty headers and a single 3" dynomax catback into a cherry bomb vortex (no cat)
they offered me to run two pipes next to eachother from the y pipe and dump before the rear axle with two dynomax bullets for $190. The piping would be 2 1/2 for each pipe, into 2 1/2 bullets.
Would it be worth it to swap into that set up and would i see any real gains/benefits from doing so?
i really dont want to lose any backpressure any help info on this is appreciated.
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: true dual 305 set up, is this a good deal and will i benefit?
You don't need dual 2 1/2 for a mild 305.
Member
Joined: Jan 2010
Posts: 314
Likes: 0
From: Pasadena, TX
Car: 1991 Formula
Engine: 350TBI
Transmission: 700r4
Axle/Gears: 2.73
Re: true dual 305 set up, is this a good deal and will i benefit?
Do it john, so I can get back my cat back, and.put my cat back on too!
Supreme Member
iTrader: (2)
Joined: Mar 2002
Posts: 2,516
Likes: 5
From: San Antonio TX
Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Re: true dual 305 set up, is this a good deal and will i benefit?
Not worth it. No gain. Will make way too much noise. Keep what you already have and save your money for something else. If anything set it up like a G92 car with two 2 1/2in dual cats into 3in catback. Your gain will be 10-15hp with some back pressure. This is how we do it in SoCal.
Thread
Thread Starter
Forum
Replies
Last Post
thefirebirdm@n
South Central Region
3
Sep 14, 2015 01:45 PM
