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Meet Poppy, Dave's 1st gen MINI Cooper S Convertible


Dave
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Well, it just seems to have got more and more noisy as it's bedded is. So much so that when we went to Glasgow at the weekend, the motorway bit was unbearable. 60mph onwards, the noise is horrible! You press the throttle even a couple of mm, the noise becomes deafening. Put the foot down in 6th and where she would pick up really quickly before on standard exhaust, now there is just a whole lot of noise and the pick up is slow. Not happy with it at all tbh, it's basically just the typical shitty boy-ricer exhaust imo. Had a check and doesn't appear to be blowing anywhere (that was my 1st thought), and last night even on the wee run over to the moors to the next village (where you barely get above 40-45mph) the sound was loud as hell. Going through villages even at speeds as low as 20mph (yeah, we got 20mph limits here!), lift off even 1mm on the throttle and it sounds like a bloody machine gun. :( Just makes the car sound clapped out.

 

I still have the brand new front section that arrived squashed flat at one end (which I've managed to get back into shape, just needs final fettling with the blow torch and the wee hammer), and have found a 3 month old standard back box for £45. Salvaged one hanger from the old standard exhaust (other was rusted to hell) so new hanger bought for £30. Trouble is the back box is a 2 hour drive away! So guess what car we're going in? Yeah, DD! She's prefect for the long drive, nice and quiet and only noisy when you want her to be, and nice and comfy. Picking it up tomorrow after work so will have a look at fitting it all this weekend if I get time. Stainless one will get put up for sale, some local boy racer will no doubt be happy with it! 

Malian exhausts = cheap noisy crap!

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Nightmare. Hope you can manage to shift it on okay, and at least you've got the other one to stick on. The new back box on the deck is a bit too loud to be honest - I like the sound, but it's a bit too much, especially for a longer journey. Gonna try adding some sound deadening to the boot. 

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On 5/19/2022 at 10:17 PM, dr_broon said:

Nightmare. Hope you can manage to shift it on okay, and at least you've got the other one to stick on. The new back box on the deck is a bit too loud to be honest - I like the sound, but it's a bit too much, especially for a longer journey. Gonna try adding some sound deadening to the boot. 

Maybe try an exhaust bung thingy mate, see if that quietens it down a bit?

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9 hours ago, Dave said:

Maybe try an exhaust bung thingy mate, see if that quietens it down a bit?

Karen's car was in getting a new flexi last week at the same place I got my back box done last year, and they said the only real option was to put in a J pipe to kill the resonance.  I've actually got a feeling it's resting on the arb and that's why it's so noisy inside - it's not actually that loud an exhaust. 

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Not heard of a J-pipe before mate. Yeah, if it's even touching it in the slightest, the vibration will give louder noise. 

 

So, got the standard pass side back box, and got the mid section heated up and knocked back into shape so they fit like a glove together. Well Happy! Fitting it wasn't easy as the standard exhaust has a fair bit of weight to it, but Gayle gave me a hand and we got it on. That bloody extra bracing reared its ugly head again! Even though I had fired the torx bolts in and out loads of times after fitting the stainless exhaust, and covering the bolts in copper grease before hand, one bloody bolt had siezed solid! I mean "how????" cry.gif1 Impact gun wouldn't even shift it (in the end it destroyed the torx head). Don't understand why it stuck, the rest came out ok. And when fitted, the threads were so clean/free you could do them all the way up by your fingers then do the final torque with the ratchet, so puzzles me. Did manage to swivel the grace around enough to give just enough room to get the exhaust past it. 

Fired her up, no leaks at all, exhaust sounds perfect! Nice and quiet, although if giving her beans, you still get a very subtle gurgle on over run which is exactly what we wanted. Picks up really nice too, can hold a conversation easily with passengers, and can hear the supercharger whine again!! Oh, can also hear the annoying squeak from the dash that I had forgot about, but can fix that by either fitting some felt to the back of the trim where it goes on the dash........or turn the radio up louder! lol Poppy is now driving sweet, ready for some summer fun!

 

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Pleased to hear that mate - good to get it sorted out. Properly weird about that bolt though - I guess that something always has to be a pain when you're doing a job though. 

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