Company: Forge Motorsport

VW Golf and SEAT Leon 1.8T Alloy Side Mount Intercooler

Product code: FMINTMK4S
£818.90 £420.00 Inc. VAT £682.42 £350.00 Exc. VAT Estimate Delivery

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Product Description

Designed by Forge to replace your OEM intercooler, this all alloy intercooler is an easy install. With excellent air flow characteristics inside the end tanks this upgrade is must.


Introducing the VW Golf and SEAT Leon 1.8T Alloy Side Mount Intercooler by Forge. This high-performance intercooler is meticulously designed to replace your OEM intercoolers, providing an easy installation process. Boasting dimensions that are 27mm x 5mm x 15mm larger than the OEM, this intercooler ensures excellent air flow characteristics within its end tanks. Upgrade your vehicle's intercooler today for enhanced performance and efficiency.

With its cutting-edge design and superior craftsmanship, the VW Golf and SEAT Leon 1.8T Alloy Side Mount Intercooler delivers a wide range of benefits over the stock SMIC. Enjoy a significant size increase of 27mm x 5mm x 15mm, resulting in improved cooling efficiency. Experience a reduction in pressure loss by 2psi, optimizing your engine's performance. Moreover, benefit from an impressive air temperature reduction of 6-9°C, ensuring that your engine functions at its best even under demanding conditions.

With its innovative design, easy installation, and superior performance, this intercooler is an essential upgrade for any VW Golf or SEAT Leon 1.8T enthusiast. Don't settle for subpar performance - equip your vehicle with the best intercooler on the market and unlock its true potential.

Complimentary Products


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Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.

Product Reviews

Product Reviews

from on Feb 23rd 2019 Verified Purchase
Beautiful handmade product with artistic welding seams. Properly fits into the original compartment, allows higher air flow and reduces intake air temperature in comparison to the OEM intercooler.

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Compatible Vehicles

Click the triangles to find your car make and model. Note that the models listed here have either had the part fitted by us or a customer or they are listed as being compatible on industry parts databases. Where it has not been directly fitted by Forge there will then be a separate May Also Fit tab where the make and model will also appear and which details our no-risk approach to purchasing this product, so it is worth checking there as well.

If you need further assistance, please call us on +44 1452 380999 or email us.



VW Golf and SEAT Leon 1.8T Alloy Side Mount Intercooler


Warranty Infomation

The majority of Forge Motorsport products come with a limited lifetime warranty (brakes pads excluded). All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.

For further information, please call our customer service team on +44(0)1452 380999 or email

Do not use aggressive (acidic) car cleaning products, particularly traffic film remover solutions or shampoos to clean your intercooler, radiator, or oil cooler. The use of these products can damage Forge Motorsport cooling systems and invalidate your warranty. These are often found at car washes. A light, warm, soapy solution (free of harsh acidic cleaning compounds) should be used to clean you cooler and thoroughly rinsed away. We recommend that you should inspect your product on a regular basis for bent and/or crushed fins. Any bent fins should be carefully straightened to allow ambient air to pass through the core face. At the time of installing your Forge radiator, an approved coolant must be used and added to the coolant system. Be sure you never mix coolant and always use distilled water.

This warranty does not apply to any defect in the goods arising from fair wear and tear, wilful damage, accident, negligence by you or any third party, use otherwise than as recommended by the supplier, failure to follow the supplier’s instructions, or any alteration or repair carried out without the supplier’s approval.



UK Mainland

Next day delivery applies to orders processed before 12 noon Monday to Friday, subject to stock availability and geographical restrictions. 'Next day' refers to next working day. We cannot guarantee next day delivery for orders placed after this time. Whilst we endeavour to honour our next day service, next day delivery cannot be guaranteed due to other extenuating circumstances. Full details

Delivery is free of charge for all orders £100 (ex VAT) or over. Products are sent by standard DPD service which is usually a next day service, but can take 2 days in transit. We reserve the right to ship smaller, lower value items via Royal Mail or any other service. (Not including Scottish Highlands, Scottish Isles, Northern Ireland, Guernsey, Jersey, and Isle of Man where charges will vary). 

Europe and Worldwide

Delivery service charges will vary depending on the quantity of product ordered, the related parcel size, and destination postcode. Live shipping rates will be calculated at checkout using ShippyPro and dependent on criteria, you will be given the option of DHL, DPD, or FedEx courier services.

Shipping into the EU - Duty Charge Information

All Forge products are sold with a Delivery Duty Unpaid (DDU) status and an import tariff may apply to your order. Customers will be contacted by the Customs and Excise authority in the destination country regarding payment prior to delivery, and it is important that correct contact telephone number and email information be submitted with the order to facilitate this part of the delivery process. Some couriers are charging an admin fee for shipping into the EU. 

If we detect at checkout that you are located within the European Union (EU), you are eligible for a contribution towards your import duty and tax payments. We can add an additional 20% on the total cost of your order, we will then pay the duty and tax costs above your contribution. This offer will ensure the price you pay at checkout is the total you pay, with no additional charges. It will also ensure you have the fastest possible delivery, with no delays. For more information, please see here

Our shipping methods ensure safe and timely delivery of your new Forge products. For further information on cost and delivery times, please contact Forge using the email address if you require any more information. We reserve the right to change the delivery service and company at any time.

Forge Motorsport ships via either UPS, FedEx, DHL (primarily for outside of UK), DPD (primarily for UK), or any other courier we chose. Other shipping options may be available for an additional fee over and above the actual shipping costs. Once a product has left our warehouse and is in the possession of the shipping company, any claims must be made directly with that shipper however we can assist with most cases.

Expert Answers

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Will this fit a TT mk1 180HP ARY engine code? The mounting points and pipe inlet/outlet locations look absolutely identical to the OEM one but just want to check before placing order.

Hello, does the vehicle have twin side mounts ? 

Answered 3 months, 1 week ago

will these fit on a S3 8L BAM engine ? as they are the same platform as the golf and leon ?


I am afraid this product is not compatible with your vehicle.

Answered 5 months ago

Hi , will this fit a 2004 Skoda Octavia VRS 1.8T Hatchback?

Hello, yes this intercooler will fit.

Answered 7 months, 2 weeks ago

Would this fit a 1.8T vw beetle?

Hello, thank you for your question, I am sorry but this item will not fit a your beetle, the beetle has a specific sidemount intercooler

Answered 10 months, 1 week ago