N75 Motorsports

3.75"-2.5" Stainless Steel Catless Downpipe for Elantra N - I30N Sedan

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  • $599.99 CAD
  • Regular price $925.00 CAD
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Fits: Hyundai Elantra N 2022 onward and Hyundai i30 N Sedan 2022 onward (2.0T).

What this is

Our Stage 3 approved catless downpipe for the 2.0T Elantra N and i30 N Sedan. The 90-degree section from the turbo flange to the mid-section of the downpipe is one piece, so there are fewer welds and fewer points that can fail. This style of downpipe is run by many of the quicker 60-130 mph cars.

On an ECU tune it adds 25+ whp; see our Elantra N ECU Calibration on Spare ECU (2022-2023) and Elantra N ECU Calibration on Spare ECU (2024-2026). It is a simpler, lower-cost alternative to our full 4-inch downpipe with 200-cell high-flow cat.

N75 3.75 to 2.5 inch stainless catless downpipe for the Elantra N, side view

Design

From the turbo flange to the mid-section of the downpipe, the 90-degree section is a single piece, which means fewer welds and fewer failure points. The flange is machined and matched to the turbo. The pipe starts as a 3.75-inch dump at the flange and necks down to 2.5 inch. It is made from 304 stainless steel in Asia. There is no catalytic converter, so it flows more than the OE downpipe and gives a deeper exhaust tone.

Features

  • N75 Motorsports Stage 3 approved; made to meet Stage 3 tuning requirements
  • One-piece 90-degree section from the turbo flange to the mid-section: fewer welds, fewer failure points
  • Turbo-matched, machined flange
  • 3.75-inch dump from the flange, necking to 2.5 inch
  • 304 stainless steel
  • Catless, with higher flow than the OE downpipe
  • Deeper exhaust tone
  • Adds 25+ whp on an ECU tune
  • Bolts in as an OE replacement
  • 36-month warranty to the original purchaser
  • Made in Asia

Close-up of the N75 Motorsports badge, bracket and welds on the catless downpipe

Options

  • Vehicle: Elantra N. The same downpipe fits the i30 N Sedan 2022 onward; i30 N Sedan owners choose Elantra N.
  • Add N75 Hardware (Fouler and Studs/Nuts and Washers): No or Yes (Gaskets also included). The kit adds bolts for both ends of the downpipe, gaskets, our adjustable O2 sensor fouler, and studs, nuts and washers for the turbocharger flange. Choose Yes unless you already have the hardware and gaskets.

Installation notes

The downpipe bolts in place of the OE downpipe. With no cat in the pipe, the rear O2 sensor reading can set a downpipe code. The adjustable fouler in the hardware kit spaces that sensor out of the exhaust stream so it does not flag the missing cat, and an N75 tune can also remove the code. A catless downpipe is for off-road and competition use; check the emissions rules where you drive.

Catless downpipe showing the turbo flange and O2 sensor bungs

Warranty

36-month warranty to the original purchaser.

FAQ

Is this Stage 3 approved?

Yes. It was made to meet our Stage 3 tuning requirements.

Do I need the hardware kit?

Choose Yes unless you already have bolts for both ends of the downpipe, gaskets, studs, nuts and washers for the turbo flange, and an O2 sensor fouler.

Will it set a check-engine light?

It can, because the rear O2 sensor no longer sees a cat. The adjustable O2 sensor fouler in the hardware kit spaces the sensor out of the exhaust stream so it does not flag the missing cat, and an N75 tune can also remove the downpipe code.

How is it different from the 4-inch downpipe?

This is a catless downpipe with a one-piece 90-degree section from the turbo flange to the mid-section and a 3.75-inch dump that necks to 2.5 inch. The 4-inch dump-pipe downpipe is a full 4-inch pipe with a 200-cell high-flow cat.



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