Project Bad Ass True Duals complete. Final pics inside...
08-25-2009, 01:00 PM
#1
Project Bad *** True Duals complete. Final pics inside... New video posted below and on post 103.
I have finally finished the true duals project for my 1995 Z28. The entire system is stainless steel and was made from Magnaflow mandrel bent pipes.
Here are the specs:
Flowmaster 3" to 2.5" reducer cones
Magnaflow stainless (5) J-bends, (4) L bends and (1) 45 degree bend
Woolf aircraft (2) 2.5" ultra tight radius L bends
Magnaflow dual in/out (internal X) muffler
Magnaflow X-pipe
Magnaflow stainless dual oval tips
Dynomax stainless cutouts
QTP electric cutouts
Lots of stainless Accu-seal clamps
I designed the cutout pipes to be easily removed and replaced with catalytic converters should the want or need ever arise. Takes about 30 minutes to do this. Also the whole thing can be easily removed rather easily just like a catback.
All pipes are stainless MIG welded and ground smooth for a seamless look. I polished the rear pipes exiting the muffler to a very shiny finish as well.
The exhaust sound is deep with absolutely no signs of rasp, popping or machine gun sounds in the 2K RPM range like what I had with the old Borla catback and ORY pipe. The sound volume at idle, as well as WOT, is similar to any other catback. Definitely not overly loud unless you open the cutouts. Maybe this is due to the Magnaflow X-pipe up front and the internal X-pipe in the muffler. The exhaust waves should certainly be balanced with this setup.
Ground clearance is outstanding with the lowest point being ~5" off the ground. This is on the pipes just before they go over the axle. I have yet to bang a pipe.
I also managed to reuse all the factory exhaust hanger points to secure the new system. I only had to custom make one new hanger, just in front of the axle as well as the pair at the tips. There are also stainless O2 bungs welded into each reducer for easy hookup to the wideband O2 at the dyno.
Thanks to everybody who offered help and advice with this project. I could not be happier with the final results.
Here are the pics of the system uninstalled:
Here are some installed pics:
Here is a shot from behind:
Click below for video:
I have finally finished the true duals project for my 1995 Z28. The entire system is stainless steel and was made from Magnaflow mandrel bent pipes.
Here are the specs:
Flowmaster 3" to 2.5" reducer cones
Magnaflow stainless (5) J-bends, (4) L bends and (1) 45 degree bend
Woolf aircraft (2) 2.5" ultra tight radius L bends
Magnaflow dual in/out (internal X) muffler
Magnaflow X-pipe
Magnaflow stainless dual oval tips
Dynomax stainless cutouts
QTP electric cutouts
Lots of stainless Accu-seal clamps
I designed the cutout pipes to be easily removed and replaced with catalytic converters should the want or need ever arise. Takes about 30 minutes to do this. Also the whole thing can be easily removed rather easily just like a catback.
All pipes are stainless MIG welded and ground smooth for a seamless look. I polished the rear pipes exiting the muffler to a very shiny finish as well.
The exhaust sound is deep with absolutely no signs of rasp, popping or machine gun sounds in the 2K RPM range like what I had with the old Borla catback and ORY pipe. The sound volume at idle, as well as WOT, is similar to any other catback. Definitely not overly loud unless you open the cutouts. Maybe this is due to the Magnaflow X-pipe up front and the internal X-pipe in the muffler. The exhaust waves should certainly be balanced with this setup.
Ground clearance is outstanding with the lowest point being ~5" off the ground. This is on the pipes just before they go over the axle. I have yet to bang a pipe.
I also managed to reuse all the factory exhaust hanger points to secure the new system. I only had to custom make one new hanger, just in front of the axle as well as the pair at the tips. There are also stainless O2 bungs welded into each reducer for easy hookup to the wideband O2 at the dyno.
Thanks to everybody who offered help and advice with this project. I could not be happier with the final results.
Here are the pics of the system uninstalled:
Here are some installed pics:
Here is a shot from behind:
Click below for video:
Last edited by wrd1972; 02-17-2011 at 08:21 PM.
08-25-2009, 03:02 PM
#5
I have been on pins and needles here at work recently. They just cut my department by over 50%, but i survived.
If i did lose my job. I would certainly consider jigging mine up and semi-mass producing them. Of course for a very hefty fee.
I have had two folks contact me to build them the system. Could not agree on the price.
Last edited by wrd1972; 08-25-2009 at 08:05 PM.
08-25-2009, 03:24 PM
#7
Launching!
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well done! looks like decent ground clearance and can be easily removed if needed. very clean. I bet it wasnt cheap to build either, all the ss pipe, ss clamps, etc. sounds great!
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08-25-2009, 05:39 PM
#16
The Dynomax cutout pipes, the QTP e-cutouts and the Woolf tight radius L bends were regular mail order price price. This all added up to about $650.00 IIRC. The cutouts and pipes were another $450.00 IIRC. Of course these are considered optional.
I managed to sell my Borla adjustable catback for $500 and two LPP ORY pipes for another $250. So you can see that went a long way in covering some of the expense of the TD's.
08-25-2009, 06:04 PM
#17
Yeah I know its not an inexpensive endevour, but well worth it...Mine is all stainless 3" with a custom X thru the dip in the Spohn TA and into Edelbrock stainless SDT 304s then routed out the sides thru oval stainless tips...I stopped counting the $$, but its cool...
--Alan
--Alan
