Mylespeed Posted July 3, 2017 Share Posted July 3, 2017 I have an S3 k ex Academy car now with 151bhp (every one helps). It is held back by the standard exhaust and I am looking to go 4.1 or 4.2.1 but am a bit shocked by the prices from CC, Powerspeed etc.Is there a way round shelling out close to £2k (fitting, tuning etc) ?Just wondered if I was missing a trick?Ta Link to comment Share on other sites More sharing options...
CycleSi Posted July 3, 2017 Share Posted July 3, 2017 Speak to Matt Simpson (BTTC driver) at Simpson Exhausts in Langley. They made me an awesome complete 4:2:1 system for my R400K for approx. £1400 fitted.It is a work of art and increased the torque noticeably whilst reducing the dB level significantly. Link to comment Share on other sites More sharing options...
Duckpit Posted July 3, 2017 Share Posted July 3, 2017 Try RacelineMy Zetec exhaust cost less than £900 and is a beautyhttp://www.raceline.co.uk/products/part_section.asp?SectionID=69&CategoryID=4 Link to comment Share on other sites More sharing options...
Mylespeed Posted July 4, 2017 Author Share Posted July 4, 2017 Thanks chaps, I tried Raceline and they do not do K series exhausts but were very helpful and reccomended Simpsons so I will try them.4.2.1 or 4.1? Link to comment Share on other sites More sharing options...
SM25T Posted July 4, 2017 Share Posted July 4, 2017 4-2-1 gives more torque mid range. Link to comment Share on other sites More sharing options...
Andy Lef Posted July 6, 2017 Share Posted July 6, 2017 Let me know how you get on; i am also looking at the prices with that feeling. Currently running a 4-1 and never use the top end so would rather end up with something that provides more mid range 'umph'. Link to comment Share on other sites More sharing options...
TomB Posted July 6, 2017 Share Posted July 6, 2017 Ive always taken the advice that the difference between 4-1 vs 4-2-1 will be pretty small in the real world. Yes there will be difference, but not necessarily worth £2k! Therefore Ive remained with my 4-1 long primary race exhaust. Link to comment Share on other sites More sharing options...
Mylespeed Posted July 6, 2017 Author Share Posted July 6, 2017 AndyHow about I buy your 4.1 and pass the 4.2.1 baton over to you? Link to comment Share on other sites More sharing options...
CycleSi Posted July 6, 2017 Share Posted July 6, 2017 When I had mine made by Matt Simpson I found the torque increase noticeable - so much so in fact that I'm often in a gear higher than with the old system. This is especially good when doing track days.It was Dave Andrews who advised me that if I was having a system made then 4:2:1 is the way to go. Link to comment Share on other sites More sharing options...
Andy Lef Posted July 7, 2017 Share Posted July 7, 2017 If I get a 4-2-1 you can have first dibs on the 4-1 - but i suspect you will not want it.................it's a '92 reg car, I've had it since 2009 and I suspect the exhaust was on from new. Link to comment Share on other sites More sharing options...
Blue C7 Posted July 7, 2017 Share Posted July 7, 2017 In the past I organised a bulk buy from power speed. Can't remember the price, can probably find the invoice. May be worth a try to see who would be interested and give them a call. Link to comment Share on other sites More sharing options...
EEK Posted July 7, 2017 Share Posted July 7, 2017 I have a recent, last month, price of 1,500 from Powerspeed for 4:2:1 with 7" repackable silencer without a Cat, or 1,680 +Vat if with 200cell built in Sports Cat. These are for the actual item without fitting but with free postage - I would probably collect.I am in the market for a Powerspeed 4:2:1, but having just bought some Nitrons piggy bank is rattling a bit, so currently on hold. If there is the possibility of a group buy negotiation for a reduction on the 1,500 then count me in. Link to comment Share on other sites More sharing options...
Blue C7 Posted July 7, 2017 Share Posted July 7, 2017 Have looked up inv I paid £1380.00 inc vat and fitted myself that was march 2013. At the time I spoke to Megan Priestley. Link to comment Share on other sites More sharing options...
Mylespeed Posted July 7, 2017 Author Share Posted July 7, 2017 I think that with exhausts "the more you know, the less you know". My car makes peak bhp at 7,100 but on track it seems to pull like a train to about 5,500 and then run out of puff creeping its way to 7,000. At the Goodwood Spring Sprint it was struggling to get beyond 105 mph down the straight whereas another 7 was reaching 120 mph. I have put an Aeroscreen on which should help but the engine needs to breathe better. My understanding is that 4.1 is better for top end and 4.2.1 is better for mid range.There again I know nothing! Link to comment Share on other sites More sharing options...
Mylespeed Posted September 7, 2017 Author Share Posted September 7, 2017 Went with Simpsons in the end. Matt built and fitted a 4-1, beautiful job for £1400. Then went to Track 'n Road for a rolling road remap........4 hours later and a lot of wizardy talk, car now pulls smoothly throughout the rev range up to an eye watering 8,400 rpm!Still didnt help at Brighton - no corners! Link to comment Share on other sites More sharing options...
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