Exhaust› Exhaust Pipes, Systems and Components

Imr

3.3TT Catless Primary Downpipes

$550.00

SKU: IMR-DP-G70-3.3L

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The IMR Catless Primary Downpipes are designed to enhance power and airflow for the 3.3TT Stinger and G70. These downpipes feature a 2.50" inner diameter, an increase from the factory 2.00", allowing for faster air flow and quicker spool of OEM or aftermarket turbos. The construction utilizes 304L stainless steel with backpurged TIG welding and 304L stainless steel flanges.
Show original supplier description
The IMR Catless Primary Downpipes are engineered to significantly enhance power and allow the turbos on your 3.3TT Stinger or G70 to breathe more freely. These downpipes feature a bellowed mouth for optimal flow directly from the turbocharger. The inner diameter has been increased from the stock 2.00" to a larger 2.50", promoting faster air velocity through the exhaust system and contributing to quicker spool times for both OEM and aftermarket turbochargers. The flanges are also made from 304L stainless steel, offering excellent heat dissipation and resistance to environmental elements. This combination of materials and manufacturing processes results in a robust and long-lasting exhaust component. Installation of these catless downpipes requires a tune to achieve maximum performance gains and to prevent potential overboost issues. Please note that this product is intended for off-road use only. IMR also offers complementary secondary downpipes, mid-pipes, and axle-back systems to complete a performance exhaust setup.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandImr
Part NumberIMR-DP-G70-3.3L
CategoryExhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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