{"product_id":"prokomon-exhaust-pipe-expander-kit-3-piece-tailpipe-expander-set-tapered-mandrel-for-controlled-pipe-reshaping","title":"Prokomon Exhaust Pipe Expander Kit — 3-Piece Tailpipe Expander Set, Tapered Mandrel for Controlled Pipe Reshaping","description":"\u003cp\u003e\u003cstrong\u003eThe Prokomon 3-piece exhaust pipe expander kit is a compact repair set that reshapes dented or misshapen tailpipes and muffler ends so you can reconnect parts without replacing the whole exhaust section.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen an exhaust pipe mouth gets dented, flattened or out of round it makes fitting clamps, slip joints and replacement sections harder and more time-consuming. This Prokomon kit provides three stepped expanders that gradually reform common pipe diameters, giving a neater fit and improving connection reliability. The set is lightweight, stores in a small case and works with standard hand tools, making it suitable for quick garage repairs and on-the-road adjustments.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this tool reshape an exhaust pipe safely?\u003c\/h3\u003e\n\u003cp\u003eThe expanders use a tapered mandrel design to spread the metal evenly instead of forcing a sudden widening. You attach the expander into the pipe end and rotate it with a ratchet or wrench so the pipe stretches uniformly, reducing risk of cracking or tearing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree progressive expansion sizes to match common tailpipe diameters.\u003c\/li\u003e\n  \u003cli\u003ePrecision-machined taper for controlled, even stretching.\u003c\/li\u003e\n  \u003cli\u003eCompatible with manual ratchets or hand wrenches for slow, safe expansion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat pipe sizes and materials will this kit work with?\u003c\/h3\u003e\n\u003cp\u003eThe kit covers small, medium and large exhaust openings used on most passenger vehicles, mufflers and aftermarket tail pipes. It suits thinner iron or aluminum pipes and mufflers around 1 mm wall thickness; thicker stainless steel requires heat treatment and is not recommended without pre-heating.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmall: expands roughly 1-1\/8\" to 1-3\/4\" (28–44 mm).\u003c\/li\u003e\n  \u003cli\u003eMedium: expands roughly 1-1\/2\" to 2-1\/2\" (38–64 mm).\u003c\/li\u003e\n  \u003cli\u003eLarge: expands roughly 2\" to 3-1\/2\" (50–89 mm).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the Prokomon expander kit effectively in a repair?\u003c\/h3\u003e\n\u003cp\u003eClean and de-rust the pipe end, clamp the expander into the opening, and turn it slowly while checking fit often. Stop shrinking or expanding as soon as the pipe rim matches the mating part so you avoid over-stretching the metal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove burrs and corrosion first for an even spread.\u003c\/li\u003e\n  \u003cli\u003eUse gradual turns with a ratchet—avoid rapid hammering.\u003c\/li\u003e\n  \u003cli\u003eTest fit with clamps or the mating tube frequently during expansion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat tools and safety steps are recommended with this kit?\u003c\/h3\u003e\n\u003cp\u003eThe expanders are driven by common hand tools; no specialized hydraulic equipment is needed. Wear eye protection and gloves, and be cautious working on hot pipes—let the exhaust cool or use heat-protection if pre-heating is required for thicker metals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOperates with standard ratchet or wrench drive.\u003c\/li\u003e\n  \u003cli\u003eUse gloves and eye protection for metal shavings and sharp edges.\u003c\/li\u003e\n  \u003cli\u003eAvoid using on thick stainless without applying heat first.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Prokomon exhaust pipe expander set is designed for home mechanics, mobile technicians and small repair shops that need a quick, low-cost way to restore roundness to damaged tailpipe and muffler ends. It’s ideal when you want to avoid buying replacement sections, when fitting aftermarket tips, or when rejoining slip-fit joints during exhaust work. If you commonly work on aluminum or thin iron exhausts and value portable, manual tools that pair with standard ratchets and wrenches, this kit gives a simple, durable solution with three sizes and a storage case for organized transport.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this expander on stainless steel pipes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Not on thick stainless steel without heat—stainless thicker than 1mm needs pre-heating to avoid cracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What tools do I need to drive the expanders?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: A standard ratchet or hand wrench fits the expanders; no hydraulic equipment is required.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Prokomon","offers":[{"title":"Default Title","offer_id":55168835092823,"sku":"B0FDPYR274","price":79.43,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/prokomon-front-packaging.jpg?v=1790414565","url":"https:\/\/britishgarage.co.uk\/products\/prokomon-exhaust-pipe-expander-kit-3-piece-tailpipe-expander-set-tapered-mandrel-for-controlled-pipe-reshaping","provider":"British Garage","version":"1.0","type":"link"}