My 3" Downpipe and exhaust

[gmac78]

Alright lads,

First night offshore and bored so thought i would show you some pics of the 3" downpipe and exhaust i made with assistance from a trusty friend who did the welding.

It tapers back down to 2.5" for ease of fitment over the rear diff and is connected to the standard back box.

I've not covered much mileage on it as i'm still trying to get my car running properly, however the standard back box does such a good job off eliminating drone etc that it requires no centre box. Sounds spot on and can defo hear the 5 pot noise more with the 3" than the previous 2.5" with no additional noticeable drone.

After using it out on the road i've realised the V clamp scrapes the road over the more bumpy stuff, so it's going to need a bit of adjustment but most the hard work is done now, thankfully!!

Takes quite a few hours to get one fabricated, or it did for us anyway. So little space for the downpipe that getting the right angle can be quite tricky, lots of trial and error.

Anyhow, some pics for you.

[quattrostyle]

Yeah exhaust fabrication takes a lot of time indeed. Good result though

[gmac78]

Cheers, it was good job satisfaction to finish it i must admit, would be better if it didn't need adjusting but as a first attempt i think it went well.

[Error404]

Good effort
Took me about 3 days to do mine inc downpipe

[gmac78]

It took me a few weeks to complete but not full days, just doing wee bits here and there. Time is at a premium with kids these days. I would say in actual man hours around the 20 mark perhaps, although i wasn't really counting. Once we got a routing out the bottom of the engine and round the CV joint heat shield the rest flew together. All good stuff.

[quattro-nick]

nice exhaust build

[SteveH]

looks good. I know how time consuming and fiddly it can be after making mine and changing it two or three times. You can get 3" past the diff/rear subframe, but it's a squeeze and easier to go 2.5/2.75" at that section or side exit and do away with the challenge!

[jeffstoo]

Looking good Gordon
I know where you are coming from regards time/patiants also the amount of fittings and gas needed. I managed to go all the way in 3" with 2 boxes. I haven't been over 3000 revs yet but I seems quite loud. I will be fitting the chips I got off you when I have put a few more miles on the clock. I will let you know how it goes.

[gmac78]

Looking good Gordon
I know where you are coming from regards time/patiants also the amount of fittings and gas needed. I managed to go all the way in 3" with 2 boxes. I haven't been over 3000 revs yet but I seems quite loud. I will be fitting the chips I got off you when I have put a few more miles on the clock. I will let you know how it goes.

The OEM backbox connected to a 3" exhaust sounds, dare i say it, maybe too quite for my liking, however the previous 2.5" system with one rubbish backbox sounded awesome round the town but the drone on longer runs was just head doing. It's bliss with the OEM backbox fitted so think i will stick with it. Must be an age thing, he he, 38 years young next month!!

Intrigued to see how these chips perform so look forward to hearing from you.

[gmac78]

Alright lads, due onshore in a few days so will be adjusting my downpipe due to clearance issues. Basically the V band clamp has scrapped the ground a few times on some bumpy roads.

I left the CV joint heat shield in place with about 3/4" clearance between the top of the downpipe and the bottom of the heat shield. My car is lowered on H & R Cup "Blue" springs and sits quite low.

Should i leave the heat shield in place or is it a better idea to do away with it to improve clearance. I can easily fabricate another heat shield that is more appropriate for the little space available.

I guess i should have asked this question before making the exhaust but where would the fun be in that, hehe!!

Cheers lads

[AndyP]

I've been running mine without the heatshield for 2/3years now without issue

[gmac78]

AndyP- Thats interesting now, so no signs of heat damage to the the CV boot after 2/3 years. Hmmm?.....

[AndyP]

Wow, doesn't time fly, I just checked and it's been over 6years since I fitted the exhaust

http://www.s2forum.com/forum/showpost.php?p=500215&postcount=187

[Error404]

You can do both