Quote from: r5gtt on October 26, 2016, 09:06:14 pmQuote from: Martin_jk on October 26, 2016, 09:05:05 pmQuote from: r5gtt on October 26, 2016, 08:31:40 pmGuaranteed the de cat is louder than the sport cat which should be obvious in sound as there's no restrictions with the de cat.That was my thoughts too I assumed it would be louder with a decat as it is straight through pipe! Just really confused and don't want to spend out on a sports cat and still be too loud! Sent from my iPad using Tapatalkhave you got a resonator fitted before the back box?.Yes I've got the powervalve sports system so it has 2 resonators, one with the valve and the other next to the down pipe! Sent from my iPad using Tapatalk
Quote from: Martin_jk on October 26, 2016, 09:05:05 pmQuote from: r5gtt on October 26, 2016, 08:31:40 pmGuaranteed the de cat is louder than the sport cat which should be obvious in sound as there's no restrictions with the de cat.That was my thoughts too I assumed it would be louder with a decat as it is straight through pipe! Just really confused and don't want to spend out on a sports cat and still be too loud! Sent from my iPad using Tapatalkhave you got a resonator fitted before the back box?.
Quote from: r5gtt on October 26, 2016, 08:31:40 pmGuaranteed the de cat is louder than the sport cat which should be obvious in sound as there's no restrictions with the de cat.That was my thoughts too I assumed it would be louder with a decat as it is straight through pipe! Just really confused and don't want to spend out on a sports cat and still be too loud! Sent from my iPad using Tapatalk
Guaranteed the de cat is louder than the sport cat which should be obvious in sound as there's no restrictions with the de cat.
Quote from: Martin_jk on October 26, 2016, 09:12:07 pmQuote from: r5gtt on October 26, 2016, 09:06:14 pmQuote from: Martin_jk on October 26, 2016, 09:05:05 pmQuote from: r5gtt on October 26, 2016, 08:31:40 pmGuaranteed the de cat is louder than the sport cat which should be obvious in sound as there's no restrictions with the de cat.That was my thoughts too I assumed it would be louder with a decat as it is straight through pipe! Just really confused and don't want to spend out on a sports cat and still be too loud! Sent from my iPad using Tapatalkhave you got a resonator fitted before the back box?.Yes I've got the powervalve sports system so it has 2 resonators, one with the valve and the other next to the down pipe! Sent from my iPad using Tapatalkwow and you're still saying it's too loud?.I have a BCS DP and sport cat linked with a link pipe into milltek catback and I'm finding it way too loud as there's no resonator on the cat back.
Quote from: r5gtt on October 26, 2016, 09:03:44 pmDo you think so AJPI agree with the more metallic sound but Remembering the de cat is straight through and the sport cat has the gauze that doesn't allow gases to flow as quick imo so it is a restriction of some sort.Yes, logically that would seem the case. Physics and that. But... going by my Stage 2 dyno, it made 345lb/ft on the stock pump and pretty much stock everything else. I haven't seen or heard of cars with the same setup but with a decat making significantly more peak or at least enough to say a decat is objectively better. Although there's a chance a decat might make a tiny bit more at higher revs. The Powervalve cats are oversize, to compensate for any inherent restriction. I'd imagine a sport cat that didn't benefit from a good design in order to compensate would indeed be more restrictive than its equivalent decat.So maybe we're both right
Do you think so AJPI agree with the more metallic sound but Remembering the de cat is straight through and the sport cat has the gauze that doesn't allow gases to flow as quick imo so it is a restriction of some sort.
You could do with having a ride in a car with a sport cat Powervalve system fitted. One man's 'loud' is another man's 'subtle'.
What system is louder prestige or powervalve I had a tb prestige system on my old car with sport cat not loud at all.
Ok mate thanks for that.Like said above best seeing if someone can take you out in there car first before taking the plunge and wasting your money. Good luck
De cat is obviously louder as it's just common sense as I'll say it again, there's no restriction but thank you for that information as others will find this a great deal of help deciding what they want
Quote from: r5gtt on November 05, 2016, 11:18:34 pmDe cat is obviously louder as it's just common sense as I'll say it again, there's no restriction but thank you for that information as others will find this a great deal of help deciding what they want Yeah I did think that from the start tbh and then when you said it too I was pretty certain just wasn't sure how much difference in noise it made was really surprised, don't get me wrong it sounds awesome on a decat just not practical as a daily! I nearly bought a prestige silencer but changed my order to a sports cat after hearing a forum members system, sounds perfect! Sent from my iPhone using Tapatalk
