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Stainless Steel Exhaust Rear Silencer, MX5 Mk3/3.5/3.75

SKU: SI3145

Finally it's here!!

Made exclusively by us, for us, we now have stock of these superb quality, 100% polished, stainless rear silencer for the Mk3 & 3.5.

We think you'll agree that with it's highly polished finish and 90mm diameter dual exits, this certainly looks the part, and at this price, can you really afford not to have one?!! Comes with a 5 year warranty.

Fits all Mk3, Mk3.5 & 3.75 models, 2005>2015



Based on 28 reviews

Andrew Taggart
Brilliant change to the car, makes a LOVELY noise, looks slick as anything. Really happy with this purchase
30/04/2023 12:17:09
Richard Webber
Was apprehensive on which back box to purchase, as didn't want an exhaust too load, but sound better than stock. So I ended up taking the plunge, Arrived very well packaged, lovely condition with good welds, I cut off the old bolts, as was corroded, in all from on ramp, to off ramp, under an hour. On road test, the sound levels with roof up and or down, was just what I was looking for. Only thing I would say, is the exhaust ends could be a bit longer? As does hide, the lovely looking exhaust ends. Overall its a yes from Me.
16/04/2023 12:17:09
Philip Major
Ordered this on a Tuesday and it was with me Wednesday Morning. Fitting is a breeze, its just getting a 10 Year Old back box off that caused the grief. The Original Mazda unit has captive bolts so you will need to source a couple of M10 38-40mm Bolts. I ordered a separate Genuine Gasket but there was no need as one is included with the Silencer. It is an IL Motorsport unit and beautifully made. The tone from it is heavier than the original but most welcome, even my wife likes it and she was very suspect when I ordered it. All round superb, would encourage anyone to buy it. Thanks to the team at MX5Parts.
09/04/2020 12:16:06
Ian Kenway
I bought this exhaust rear box for my 2010 mx5 3.5 , I’m totally satisfied with the sound and fitting of this product, also the speed in which it arrived. I will use mx5 parts always 10/10 service and a fantastic exhaust ,well done guys
13/09/2018 12:16:10
Liam Fitzgerald
Decided to go for this silencer to bring a bit of sound to my recently purchased MX-5.Was a bit hesitant about getting it with some of the reviews but went for it in the end. Ordered it on Tuesday and it arrived on Thursday all shiny and nice.Getting the factory silencer off was not easy!! (one nut spun in the socket). Ended up using my angle grinder to to get through the welded bolt and hard to get it off two of the hangers but came off in the end. Fitting the new one was surprisingly easy! (20 mins)Took the advice of getting the after market gasket but it actually came with one but no bolts, washers or nuts so you'll need to get them.Yes, it is a bit boomy but not to much. I'm sure it will quieten down in time but then again, I do like a bit of boom!Overall, well made and looks great. Well worth it.
06/07/2018 12:16:11
Ian Hampton
The sound is reasonable. It's nice to have some exhaust noise in my previously mute NC1, but it seems a bit boomy at low revs and seems to decrease in volume as revs rise.However, after a month on the car, I've noticed that the hangers and welds are all really heavily tarnished, to the point that there's a dribble of rust running down from each hanger towards the ground.I purchased the exhaust second-hand but new/boxed/unfitted from another owner so sadly I suspect I won't have any support from MX5parts.Also worth noting that according to the manufacturer/importer IL Motorsport, this exhaust does not have TUV approval in Germany.
15/02/2017 12:16:15
Bent Nygaard Larsen
warning - do NOT buy it for NC Mk3.5I'm summer 2015, ONE year ago, we mounted this Rear Silencer. Easy to fit, but it's NOT far away from The bumper and after ONE week, i discovered that has BURNED a Big HOLE in both sides of the bumper.😩 help my bumper melts 😰the new pot fits with orginal suspension, but hangs further inside the car so that the exhaust and heat is too close.I have welded about 2 inches longer inlet and moved suspension, and longer distance to the bumper, where there are large hole in both is something rotten in only 4 years old car.
25/08/2016 12:16:16
John Barber
Had this fitted for about 3 months, but due to resonate noise coming through the car, I even installed sound proofing in the boot which helped but still a pain mostly at engine braking, so for now refitted the old standard back box.
05/01/2016 12:16:18
Michael Paterson
A poor exhaust. It doesn't look very good from the back of the MX-5 as the pipes don't extend far enough through the rear valance. It introduced massive and irritating vibrations through the plastic parcel shelf bit. It's boomy & harsh below 4,000rpm and oddly quiet above 4,000rpm (unlike the stock exhaust which sings nicely at higher revs). When hot the exhaust gets extremely boomy and unbearable with the roof down. I returned mine!It also doesn't come with the required bolts (threads are welded to stock exhuast)
23/06/2015 12:16:20
Dave Pleszko
Was a little worried at 1st after reading some reviews of people saying its Boomy.... After a couple of phone calls to Mx5parts I took the plunge and ordered it for my 2.0 Sport.... I needn't have worried, Fit and finish is 100% spot on and the sound is just right, a lovely sporty note but not too loud, "just Right".... Many Thanks Mx5parts !!!!!
16/03/2015 12:16:21

Delivery Information - MX5 Parts

We understand that its really important for you to receive your goods in a timely fashion and for a competitive price. To ensure that we can deliver this we have developed a strategic partnership with both the Royal Mail and our courier partner, Think Worldwide.

At the present time, we only offer one delivery option ‘our carrier’. We will dispatch your goods with the most suitable carrier, for main land UK deliveries this is normally Royal Mail 1st class for packages weighing under 2kg and Think Worldwide for those that are over.

Our delivery charges are based on the weight of the consignment and the destination address. For UK mainland deliveries they start at £2.95 for a package weighing under 200g and rise to a MAXIMUM of £9.95 for a package weighing 2kg or over (EXCEPT very large bulky items that have an additional shipping surcharge added). The exact delivery cost will be clearly displayed at checkout.

Delivery times are estimated at 1-3 working days by Royal Mail, and 1-2 working days by Think Worldwide for mainland UK addresses. If you order before 3pm, Monday to Friday, we will dispatch the same day. If you order after 3pm, we will try to dispatch the same day, but if we cant it will be the next working day. Items ordered after 3pm Friday or over a weekend will be dispatched Monday. Items dispatched on Friday are for delivery the following week. Items ordered over a Bank Holiday will be dispatched the next working day. MX5parts is constantly updated to keep pace with changes in our stock but demand is high and we occasionally run out of popular items. If we have run out of stock and can’t dispatch your order the next working day, we’ll email or phone you with a revised dispatch date. You can then either accept the revised dispatch date or cancel the order, as you wish. Please note, shipping times are an estimate, and can not be guaranteed. Please note that during special offer periods, dispatch of your order may be delayed slightly due to high a volume of orders.

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If you need to change your delivery address, for any packages that have been dispatched with Think Worldwide, there will be an additional charge of £9.95 if the package has already been dispatched.

Please remember, even with Royal Mail deliveries, that any items which are too large to fit through your letter box will need someone to be available to receive the delivery. If the item cannot be delivered, you will be carded and given the option of either a re-delivery or you can collect your parcel from your local post office depot.

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We guarantee that you’ll be satisfied with mx5parts!

We are an independant, family company, run by a dedicated team. We aim to be the kind of company that we’d like to deal with if we were you. You have our absolute commitment as fellow MX-5 owners, car nuts, internet users and hard-working people that you’ll be satisfied with mx5parts. If you’re not, let us know and we’ll sort it out!

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MX5parts maintains an everyday savings pricing policy. We watch other retailers closely and maintain competitive pricing. The internet being the beast it is means that any Tom, Dick or Henrietta can set up a website in their back room and charge bargain basement/off the back of a lorry (guv) prices. Often they will have no stock, no returns policy, questionable security, no guarantees and of course poor customer service. MX5parts strives to be open and honest, so we will never inflate our prices to set up an artificial ‘sale’ (a common – and illegal – retail practice).

It is inevitable in an open market like the internet that there will be some individuals selling some items cheaper than we do, and some selling them for more than we do, just as in the high street. We take great pride in offering a fast, efficient, friendly and secure shopping experience, with great products at fair prices. We encourage our customers to shop around, but are very pleased to welcome them back again and again.

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If you order before 3pm, Monday to Friday and we have your items in stock , we’ll despatch the same day . If you order after 3pm, we’ll still try to despatch that day but, if we can’t, we’ll despatch the following day. Items ordered after 3pm Friday or over a weekend will be despatched Monday. Items despatched on Friday are for delivery the following week. Items ordered over a Bank Holiday will be despatched the next working day. MX5parts is constantly updated to keep pace with changes in our stock but demand is high and we occasionally run out of popular items. If we have run out of stock and can’t despatch your order the next working day, we’ll email or phone you with a revised despatch date. You can then either accept the revised dispatch date or cancel the order, as you wish. Please note that during special offer periods, dispatch of your order may be delayed slightly due to high a volume of orders.

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We guarantee to accept back any goods that you do not want, are not suitable, have changed your mind about, infact, for ANY reason, provided the goods reach us within 30 days of dispatch from us, in their original condition and packaging. Please tell us why you are returning the items, just for our records. The original purchase price of the goods will be refunded on to the card that was used for their purchase. Sorry, but we can not refund the carriage costs.

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