seems most are 2.5". I want 3" from the converter to the muffler. If it has duel out than 2.5" out on both sides is fine.

James

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1985 Z-28 305 TPI
221,000+ mi., Original Eng.

 

they don't anymore but you can buy a 3" pipe from the cat to the muffler. the PNs are in my sig

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
EFI & Intake Options
AOL IM: superGRtaz

 

the ultra flo catback is what you need. As far as i know, it still has the 3" inter pipe.

 

the confusion has been that is a 2.5" mandrel bent pipe to a 3" cat flange. but the Ultra flow is the higher model so maybe it does have 3". The normal "dynomax catback" that I asked for is 2.5" I checked PNs of the individual pieces and got their real size.

 

The Dynomax Ultraflow cat back kit is a 2.5" int. and over-axle pipe. The only way to get a full 3" exhaust from Dynomax,, currently is to buy the separate parts.
Here's a picture and parts listing of the pieces needed to build your own 3” Dynomax “Race Series” Cat back
http://albums.photopoint.com/j/ViewP...p=45950156&f=0
This is an inlet to outlet shot of the 17227 Dynomax (3” inlet, dual opposite exit 2.5” tailpipes) - pretty straight through for one side. http://albums.photopoint.com/j/ViewP...p=45950157&f=0

 

WOW,Bad ss thanks for part#s.Only thing is the tips,I hate turn downs.You know of any other tip that might fit?How much ,and the sound How does i sound?I had a CVX dynomax exhaust before and it sounded awesome,the best exhaust I ever heard.

 

I just ordered a Flowmaster AT cat-back system for a 3in cat.

 

BTW, the part # was 17234.

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'88 IROC TPI 355, '69 truck 4-bolt, fully balanced, 9.75:1 compression, fully ported '70 truck heads(for now), Harland Sharp 1.6 Roller Rockers, Comp Cams CS 252AH-12, ported '86 TPI converted to speed density, Crane AFPR, Flowmaster 3in. exhaust, Edelbrock TES headers, all emissions equipment is still intact, plan on burning my own chips, many more mods and parts on the way as time and money permits =(
Best E.T. with TBI 305: 16.11 @ 82mph
Haven't been to track with new motor
If you have any questions on converting from TBI to TPI email me at jdkchevy70@yahoo.com
In memory of Dale Earnhardt, I'll miss cheering for that black #3 on raceday!!!

 

Badss,how much for everyhting?Does it come aluminized?I really like the way it looks.Thanks

 

testing new sig

------------------
-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

 

ttt

 

Thanks PROCHARGED,

It's aluminized, including the muffler. Call Summit with the part numbers,, I believe they have them in stock,, should be under $260,, I'd think. Got all mine through friends that still have wholesale connections.

If you don't like the turndown tail pipes, get two 90 degree bends and have a muffler shop weld a set up with a section of straight pipe what ever tips you want to run.

Sounds great!! A little loud for me,, but nice. I'd say it sounds very similar to the CVX muffler,, maybe a little louder. Very similar design. Sounds a little like the Borla Sportsman.

[This message has been edited by BadSS (edited April 25, 2001).]