Best sounding exhaust upgrade
Discussion
I bought a 4.0 97 Chim last weekend. It's great but I think i want more noise!
What is the best way of getting it to sound better - more pops and bangs on over run, louder note on acceleration?
I have seen other posts but there doesn't seem to be a consensus - any advice greatly appreciated!
What is the best way of getting it to sound better - more pops and bangs on over run, louder note on acceleration?
I have seen other posts but there doesn't seem to be a consensus - any advice greatly appreciated!
caduceus said:
I too bought mine a week and already I'm in the process of taking off the manifolds to remove the pre-cats.
As already mentioned, it's a good starting point. Plus it makes the engine rev a little more free and reduces under bonnet temps, apparently.
It's all personal when it comes to acceptable exhaust notes. I personally don't like the 'tug boat on tickover' sound. For me it sounds too much. I prefer a more refined deep rumble.
How big a job is this? You reckon it makes it sound better?As already mentioned, it's a good starting point. Plus it makes the engine rev a little more free and reduces under bonnet temps, apparently.
It's all personal when it comes to acceptable exhaust notes. I personally don't like the 'tug boat on tickover' sound. For me it sounds too much. I prefer a more refined deep rumble.
AceOfHearts said:
I also have precats removed and a Clive F y-piece. Not as loud as the sleeved silencer (with cats) that i used to have but still nice.
I sometimes miss the pops and bangs of the sleeved silencer though and wish i had some more volume but it would just not be worth it considering noise limits on trackdays etc.
https://www.youtube.com/watch?v=qt0Keay_b60
This is my car from a few years ago. Bad sound quality though as it was windy and rainy
Interesting, so you think the sleeved silencer sounds better and louder? I have no intention to do any track stuff so that's not an issue. Just want the best noise i can get, whilst avoiding sounding like a tractor/ boy racer....I sometimes miss the pops and bangs of the sleeved silencer though and wish i had some more volume but it would just not be worth it considering noise limits on trackdays etc.
https://www.youtube.com/watch?v=qt0Keay_b60
This is my car from a few years ago. Bad sound quality though as it was windy and rainy
Didn't manage to listen to many sadly so still undecided! I had a quick go in one with pre cats out and Clive Y piece and i'm not sure its loud enough for me! Is sleeving a standard exhaust the loudest under throttle and the method that creates the most pops and bangs? There were a few cars on the drive on Saturday that sounded awesome when accelerating away - i want that!
QBee said:
PARDON? 
Haha sorry QBee! And thank you for taking me for a quick run, shame i didn't manage to find you during the drive as would've been good to hear it on the move a bit more.It was a nice sound but then i think i need to go through the bonkers loud phase perhaps to appreciate the subtlety of a pre cat out Clive F set up in the future. Fernhursts are suggesting the straight piped (same as sleeved?) option and leaving the pre-cats in.... what's the most aggressive one any of you have heard?
A900ss said:
Taking out the pre cats has other benefits other than noise.
It will make the car slightly more powerful, help it exhaust easier and keep underbonnet temps down.
Sleeving won't do that (at least I don think it does the first one but happy to be contradicted).
Good luck but I think pre cats out is the no brainier, then a choice of decat Y or Sleeving. I went for the Y and haven't regretted it one bit.
I've been told that pre cats out is a no brainer but Fernhurst are saying to leave them in to begin (and highlight possible MOT issue, i know there are ways round that). Does leaving pre cats n not help alleviate teh tug boat/tractor sound at idle?It will make the car slightly more powerful, help it exhaust easier and keep underbonnet temps down.
Sleeving won't do that (at least I don think it does the first one but happy to be contradicted).
Good luck but I think pre cats out is the no brainier, then a choice of decat Y or Sleeving. I went for the Y and haven't regretted it one bit.
jamienshelly said:
Removing the pre-cats only gives a little bit of noise increase, but it removes 2 very big restrictions in the exhaust that are very close the engine, by removing them you can get rid of the gasses which in turn lowers the engine bay temps and allows the engine to rev a little smoother/faster and they do nothing positive when the engine is warm!. If you are unsure I would, remove the pre-cats, Clives 'y' piece and see how you get on honing around and long journeys. Then if you still think its not enough then sleeve or buy a sleeved system, so if it is too loud for you, you can swap it back fairly easily.
Hope this has helped
So i could end up with pre cats out, clive F AND sleeved.... would that sound ok?!!!Hope this has helped
jamienshelly said:
Ours does, some say its far too loud and some say its very nice, as I said in a previous post, its personal choice. we like so that is all that really matters but I have had far more positive comments than negative. Ask anyone who attended the last TiTT in September.
Do you have a vid/sound clip anywhere? Where are you based?Gassing Station | Chimaera | Top of Page | What's New | My Stuff