Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: Jono FD3 on June 08, 2009, 09:35:20 PM

Title: my new 3" cat back....... home made
Post by: Jono FD3 on June 08, 2009, 09:35:20 PM
Well as some of you know I lost my exhaust on the way up to japfest as a result of the dredded tin worm :( and me being me, I didnt\'t solve the problem by buying an off the shelf item!! LOL.

The other week a mate was changing his stainless exhaust on his impreza WRX and as a result, it was exactly what I wanted...... & some!! gave him £120 for what I thought was a cat back, but what I got was, Turbo elbow & down pipe, 2 pre silencers & back box all in 3" stainless!! I picked it up from him after Monster jam in cardiff & proceeded to walk through town on a Sat night at 11pm with people every where, carrying a stainless exhaust over the shoulder!!! Oh the looks we were getting! LOL

The following day I repaird the old 5Zigen back box by cutting off the mild steel rear & replacing it with stainless:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0760.jpg)

Looking through:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0762.jpg)

then the old scooby system was introduced to Mr Ginder :)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0764.jpg)

After a bit of cutting & shutting I ended up with this:
Nice neat weld on the flange!!
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0767.jpg)

and on the silencer:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0766.jpg)

This is the cat back.... up to the rear box:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0765.jpg)

Then with the rear box fitted:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0768.jpg)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0769.jpg)

And on the car:
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0771.jpg)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0772.jpg)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0773.jpg)
(http://i35.photobucket.com/albums/d192/jonathandudley/REX/Photo0774.jpg)

It is rather a snug fit under the car & I think it is actualy quieter than the original 5Zigen system!! Next on the cards is the silenced mid pipe to mach the rear section, grind the welds back & polish the system & then were all done under there :)..... But the real bonus is, I will probably have the rear section spair so I can sell it on & get some money back :wiggle

Feel free to coment (good or bad) I can take it.
Jono
Title: my new 3" cat back....... home made
Post by: shaunwil on June 08, 2009, 10:11:34 PM
awesome welds. Brilliant bit of work :)

Shaun
Title: my new 3" cat back....... home made
Post by: gyles18 on June 08, 2009, 11:15:51 PM
got any vid\'s of it? would like to hear what its like. the way you have made your system there is pretty much exactly the same as how my kakimoto is. two silencers on the cat back section...
Title: my new 3" cat back....... home made
Post by: kiwiracer on June 08, 2009, 11:38:22 PM
cool dude :Thumbsup!
Title: my new 3" cat back....... home made
Post by: L18M on June 09, 2009, 12:03:07 AM
ah.. nice work.. would be interesting to hear it =)
Title: my new 3" cat back....... home made
Post by: grinder on June 09, 2009, 09:33:45 AM
very nice :D
Title: my new 3" cat back....... home made
Post by: exige on June 09, 2009, 12:14:06 PM
There\'s some tallented people on here!!
Title: Exhausting
Post by: REVIT93RX7 on June 09, 2009, 12:39:44 PM
Very nice work!
Title: my new 3" cat back....... home made
Post by: Jono FD3 on June 09, 2009, 01:33:35 PM
I\'ll get a vid up on the weekend guys, but it doesn\'t sound too bad.... I\'ll do a before & after with the silenced midpipe ;)

Jono
Title: OK... it\'s now a full 3" home made system, with unsilenced mid pipe!! LOL
Post by: Jono FD3 on June 14, 2009, 12:05:46 AM
Well I desided today that the car was not asbo terretory in the noise department, so opted not to put the silencer in the mid pipe!
I think the exhaust itself is quieter than the std 5Zigen system that was on there & with the 3" mid pipe the note has deepend slightly compaird to the R-Magic 2 3/4" unsilenced mid pipe I had on her!!

Anyway, here is a vid of it.... take a look, & lets have some feedback ;)



Cheers
Jono
Title: my new 3" cat back....... home made
Post by: L18M on June 14, 2009, 12:10:51 AM
feedback... i like ur rear spoiler and wing mirrors :)
and the led lights u made earlier.. all nice little touches :)
Title: my new 3" cat back....... home made
Post by: gyles18 on June 14, 2009, 09:05:00 AM
i like it, sounds very race car like:wiggle