Starting at the turbo discharge, this downpipe bolts up with a CNC machined turbo flange. A slight expansion to the stock turbo outlet allows exhaust gases a smooth transition to the 3" piping. Two slight bends allow the body of the downpipe to clear the heatshields, power steering rack, and quattro transmission. A stainless steel flex section accurately placed allows for engine movement. 42's signature adjustable 3-bolt flange finishes up the first section of the downpipe, allowing for precise adjustments in fitment. Next a Magnaflow cat bolts-up and piping makes an S-bend to meet the stock exhaust location. An adaptor is used to allow bolt-on fitment to any stock or aftermarket cat-back. The whole system bolts together with grade 5 hardware and triple layer gaskets. Mechanical locking nuts are used to ensure the downpipe never comes loose.
42's 3" downpipe upgrade has been designed to squeeze all available power from a street or track driven TT. Power increases can be felt instantly after installation. Midrange and top end power increases dramatically while almost no low end power loss is felt. Boost builds steadily without a major spike in pressure. On the smaller K03 turbo cars power increases are maximized by additional modifcations (intake, cat-back exhaust, N75 valve, etc). Since the 1.8T's initial release by VW in 2000, it has been proven time and time again that 3" downpipe upgrades provide healthy power increases on all 1.8T motors.
This 3" downpipe upgrade is available in two configurations - street or race. Street series downpipes include a high-flow cat. Race series downpipes include a test pipe. Test pipes and cat sections are available separately for those who wish to change at a later date. Thanks to a modular flange design the cat can be easily removed on race day and reinstalled for street use.
Please note that when using a "race" series kit (test pipe in place of a catalytic converter), you may get a Check Engine Light due to the lack of a converter. This can be avoided by using a system that utilizes a catalytic converter, an oxygen sensor spacer, or some type of aftermarket ECU tuning, such as APR Tuning.
Please allow 10-20 business days for this product to ship. 42's downpipes are built in-house and their fabrication staff is occasionally backed up.
If you choose to add the ceramic coating option, please allow an additional two weeks for shipment from the time order is placed.
Japanese
