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View Full Version : HiTech, 304 Stainless cat back system fitted...



CanberravRS
29-10-2011, 05:07 PM
OH my what a difference that made. Stainless Mandrel bent/end on end tig welds. 1/2 the weight of the factory with a 10 yr warranty to boot!

In the pics have a look at the crushed pipe work from the factory, This is seriously poor, and the fact that the dealership mechanics never commented proves my thoughts about that dealerships level of capabilities. ( but get this, it seems this is normal on the Skoda V6) I have checked with one other V6 Superb owner and it seems that the flattened exhaust is part of the standard build. Probably part of the detuning to 191kw from the R36 Spec.
Not impressed Skoda, restrictive exhausts increase fuel consumption. I've already seen an average drop in consumption.

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-snc7/s720x720/315718_10150436248874343_543744342_10026239_701282 302_n.jpg
inside the exhaust there are restrictions like you would not believe..
Everything responds quickly now.. and it sounds great.. some pics to start and Ill do a sound profile tomorrow from down the oval.
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/s720x720/312236_10150436250674343_543744342_10026252_941881 77_n.jpg
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-snc7/s720x720/387907_10150436250864343_543744342_10026253_503973 090_n.jpg
Lovely new rear end look.. just a little flash of Stainless under the rear.

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-snc7/s720x720/386347_10150436249884343_543744342_10026246_114322 3941_n.jpg
Wonderful end to end mandrel bends attached to the straight on pip from the factory cat converters and exhaust sensors.

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-snc7/s720x720/383706_10150436249364343_543744342_10026243_777014 076_n.jpg
And now the end to end seam welded Mandrel bent pipe with splitter to the rear mufflers.

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/s720x720/320578_10150436250099343_543744342_10026248_143137 2391_n.jpg

This is the link to the album with some vid footage at the exhaust shop and 0-110 acceleration after the exhaust.

http://www.flickr.com/photos/69220013@N06/6291034254/
Just run the flikr frame backwards... sorry

There is an incar acceleration clip. I'll organise an external clip soon.. but its sweet..

GoLfMan
29-10-2011, 05:37 PM
looks like a nice exhaust! Bet it sounds great!

CanberravRS
29-10-2011, 05:43 PM
Very impressed... really happy.

I would recommend HiTechMufflers to anyone. Their engineering and quality is unsurpassed. Thanks to Nick and Lambros for the one off.

Mi16 Man
29-10-2011, 07:09 PM
Thx for sharing. Zhorst and APR coming up for my GTi very soon.... ;)

Gti Dave
29-10-2011, 07:27 PM
Looks grat mate. Now for some sound clips (in cabin and outside) please.

CanberravRS
29-10-2011, 07:40 PM
For sure, and maybe a drive by if I can organise someone to film.

dArK5HaD0w
29-10-2011, 08:44 PM
that looks tops!!
we need to organise a meet now so we can hear it!!

CanberravRS
30-10-2011, 06:25 AM
For sure, I'll pm my mob to you.
Sent from my Mango Windows Phone using Board Express

woofy
30-10-2011, 08:12 AM
Is the factory stainless steel? For some reason I assumed it was as our last two mazdas were, people used to always pull them off and replace them with crappier grade than stock, and then regret it later on. I would have thought for the price they would be on skodas as well.

CanberravRS
30-10-2011, 10:55 AM
Is the factory stainless steel? For some reason I assumed it was as our last two mazdas were, people used to always pull them off and replace them with crappier grade than stock, and then regret it later on. I would have thought for the price they would be on skodas as well.

Nope, the factory exhausts on most cars are not Stainless as it cant be easily bent,welded,stamped etc. All the pipping on most cars are a rust restistant coated 2mm cold drawn seamless pipe.

Stainless has to be bent with specific tools, especially 304 which is really light and strong. But it has a tendancy to grow, in other words over the length of my system it will grow about 2cm as it heats up. Just protudes the tips a bit more.
I went for Mandrel bends where ever possible too as to reduce any obstructions to the flow.

After the cruise home yesterday, theres no noticeable drone, it has a wicked BLIP between the gears now when the revlimiter/DSG shift occurs ( BOOF sound, out the exhaust ) and id easily say that the power has gone up as my 0-100 has dropped by nearly a full second. Did a few tests on the Federal highway... accelerating up to 110k car seems very happy now.

Theres a vid of that on flirk now.

hooba
30-10-2011, 12:48 PM
It's got a nice snarl in the video, nice work.

CanberravRS
30-10-2011, 05:07 PM
Thanks mate, its certainly bought it to life.

Jake02
30-10-2011, 05:47 PM
It's got a nice snarl in the video, nice work.

Excuse my idiocy but where is it?

CanberravRS
30-10-2011, 06:00 PM
BLIND Jake... end of the first post is a link to flikr, then have a look..

Jake02
30-10-2011, 06:56 PM
BLIND Jake... end of the first post is a link to flikr, then have a look..

Gee thanks Giles, you're so nice :P!

I found it and have decided I'm coming down to experience it in person. Goddamn it's nice!

CanberravRS
30-10-2011, 07:37 PM
LOL , sorry mr.. for some reason flikr and the forum disagree.. so ive only been able to post from other sources..

I'm hoping it sounds as good outside as it does inside...happy to take you for a spin Jake.

Parkesy
31-10-2011, 05:55 PM
Sounds brilliant! Well done, mate. Now if I can just talk the wife into it.

gh172
31-10-2011, 06:24 PM
Sounds awesome mate!!! Doesn't sound like 4 cylinder anymore .

team_v
31-10-2011, 07:33 PM
Sounds nice and deep.

the performance gains were probably gained from removing hte resonators and the extra weight in the stock system.

Can't wait to hear the outside videos of it.

CanberravRS
31-10-2011, 08:12 PM
Ahh Yeah I will try to get the vid done soon.. just keep running out of time.
I have to say that the before and after performance is spectacular. I did a quick vid this morning, on the warm up..will post in a tic