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bullettneil
Original Poster
131 posts
18 months
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has anyone with one of these with a standard exhaust system on it had the bypass done to make it sound like the pse system but without the switchable option?
if so does it sound the same as the pse and what does it cost? will it also have issue passing the mot after?
cheers neil
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General Bilko
263 posts
55 months
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bullettneil
Original Poster
131 posts
18 months
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cool,very helpful thank you.
im essex based so im close to haywood and scott,autostrasse in coggelshall and finlay gorham too
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MrBurns
48 posts
16 months
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Had my 997 Gundo'd about a month ago, used hayward & scott, great services, couple of hours down the nearby cafe while they did it on a Saturday morning.
Can defo recommend it. I went for a 1.5" pipe, really makes the difference, deep and throaty on acceleration and non intrusive at motorway cruising speeds. It can sound a tad blowey on cold starts but fine when warmed up.
No change to mpg (other that a heavier right food to enjoy the sound!) and no impact on MOT as the bypass is beyond the muffler.
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STiG911
631 posts
36 months
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I KNEW I should have put money on that question!
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General Bilko
263 posts
55 months
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MrBurns said: Had my 997 Gundo'd about a month ago, used hayward & scott, great services, couple of hours down the nearby cafe while they did it on a Saturday morning.
Can defo recommend it. I went for a 1.5" pipe, really makes the difference, deep and throaty on acceleration and non intrusive at motorway cruising speeds. It can sound a tad blowey on cold starts but fine when warmed up.
No change to mpg (other that a heavier right food to enjoy the sound!) and no impact on MOT as the bypass is beyond the muffler. +1 on all that, I'd recommend H&S and I'm very happy with the 1.5" pipe on my 996
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iaiin
360 posts
118 months
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Had my 996 done by H & S 2 weeks ago, ian the guy their said he had just done 1 with a 2" by pass ! stunning sound.
So had my done & wowwwwwwwwwwww
You should have heard me threw hindhead tunnel coming back !!!!!
made up for 3 hr traffic jam i was in...
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hendy
463 posts
108 months
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bullettneil
Original Poster
131 posts
18 months
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STiG911 said: I KNEW I should have put money on that question! what?!!!!! lol
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bullettneil
Original Poster
131 posts
18 months
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iaiin said: Had my 996 done by H & S 2 weeks ago, ian the guy their said he had just done 1 with a 2" by pass ! stunning sound.
So had my done & wowwwwwwwwwwww
You should have heard me threw hindhead tunnel coming back !!!!!
made up for 3 hr traffic jam i was in... 2"? so they have gone up from 1" to 2"? forgive me for sounded thick.how does that pipe make it louder?it just connects the two pipes that are exiting the same exhaust box anyway? cant see how connecting them helps
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STiG911
631 posts
36 months
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On the rear boxes, one pipe is entry and the other is exit - unlike most other cars, both are on the same side of the silencer casing, so the exhaust comes in from the cat, does a U turn, and goes out the bottom to the tailpipes.
The bypass pipe diverts a portion of exhaust gas straight into the tailpipe, with the remainder going via the silencer creating more noise.
As the bypass is done after the cats (which sit behind the bumper) there's no impact on any MOT testing.
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bullettneil
Original Poster
131 posts
18 months
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looking at pics i must be a douche! to me it looks like two pipe exiting the exhaust side by side and then going in to one at the tailpipe?
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STiG911
631 posts
36 months
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Even in real life it's difficult to tell because they are so close, but one is the connection from the cat, and the other is the outlet to the tailpipe 
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bullettneil
Original Poster
131 posts
18 months
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ok i trust ya.now its who i get to modify it.ian at haywood and scott did do my cossie centre box bypass years ago
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Reeso
900 posts
120 months
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poof.....stop talking and get on with it man! I could hardly hear you leaving mine at the weekend..... 
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STiG911
631 posts
36 months
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Reeso said: I could hardly hear you leaving mine at the weekend..... Ooh, that's low! 
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bullettneil
Original Poster
131 posts
18 months
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Reeso said: poof.....stop talking and get on with it man! I could hardly hear you leaving mine at the weekend..... wind your neck in wingnut!and wtf are you you doing in here?this is for porsche people,not pretentious ponces who willy wave by having a car as wide as my mums arse. anyway i had to let it warm up.
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STiG911
631 posts
36 months
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bullettneil said: Reeso said: poof.....stop talking and get on with it man! I could hardly hear you leaving mine at the weekend..... wind your neck in wingnut!and wtf are you you doing in here?this is for porsche people,not pretentious ponces who willy wave by having a car as wide as my mums arse. anyway i had to let it warm up. 
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Reeso
900 posts
120 months
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STiG911 said: Reeso said: I could hardly hear you leaving mine at the weekend..... Ooh, that's low! You missed the "s" off mate...... 
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Reeso
900 posts
120 months
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bullettneil said: Reeso said: poof.....stop talking and get on with it man! I could hardly hear you leaving mine at the weekend..... wind your neck in wingnut!and wtf are you you doing in here?this is for porsche people,not pretentious ponces who willy wave by having a car as wide as my mums arse. anyway i had to let it warm up. I thought I would see what modifications you were going to perform on your Beetle....  ....but what a willy to wave .....
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