MILLTEK SSXSE231 Cat-back 152x76mm Oval SEAT Leon Cupra 290 3 & 5 Door Hatch (GPF/OPF) ymm_33 The Polyphonic Harmonizer uses patented

The Polyphonic Harmonizer uses patented units with pipes of varying diameters and lengths to create multiple harmonized exhaust notes

in doing this it gives a more consistent result and reflects real-world driving conditions more accurately

0L V6 engine

the QRJ ensures reliable boost control and fast response with minimal wear

It is effective in reducing unsprung weight

MILLTEK SSXSE231 Cat-back 152x76mm Oval SEAT Leon Cupra 290 3 & 5 Door Hatch (GPF/OPF) ymm_33 The Polyphonic Harmonizer uses patentedDescription MILLTEK SSXSE231 Cat back 152x76mm Oval SEAT Leon Cupra 290 3 & 5 Door Hatch (GPF OPF) The Cat Back systems are designed as direct replacements for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing the owner to select the desired exhaust volume and tone. All products are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. Performance