do88 Bigpack Intercooler Kit BMW 135i 335i N55

Description
Review
Returns/Shipping

A complete charge air upgrade for N55 powered BMW 135i, 335i and X1 35i. The Bigpack combines a large all-aluminium intercooler, a 3 inch (76 mm) throttle body side charge pipe kit and an upgraded turbo outlet hose, replacing everything from the turbo outlet to the throttle body. The standard plastic charge pipe is prone to failure, even on unmodified cars.

Features

Core volume 15517 cm3 against 6933 cm3 for the standard intercooler, 124 percent larger
Frontal cooling area 1151 cm2 against 658 cm2, 75 percent larger
Airflow of 498 CFM against 354 CFM at 0.15 bar (2.18 psi) pressure drop, 41 percent higher
Post-intercooler air temperature of 43 deg C against 58 deg C, 15 deg C lower, measured on a 335xi N55 that was standard apart from the intercooler
Peak power gain of 13 hp, measured on a 335xi N55 with a Stage 1 tune
Cast, flow-optimised end tanks and an all-aluminium construction
Charge pipe has two 1/8-27 NPT methanol injection ports, supplied with blanking plugs
Turbo outlet hose has a CNC machined adapter and 4 layers of high temperature aramid fibre reinforcement

Specifications

Part number: BIG-290-S
Kit contents: aluminium intercooler, turbo outlet hose, 3 inch (76 mm) charge pipe kit, silicone hoses and fitting hardware
Charge pipes: 3 inch (76 mm) mandrel bent aluminium with CNC machined throttle body flange
Hoses: silicone with 4 layers of polyester and aramid reinforcement
OE references: 17517540035, 13717590304, 754003504, 70376685, 70362303, 13717599294, 13717615026, 13717599293

Fitment

BMW 1 Series E82 E88: 135i, 135is, engine N55, 2010-2013
BMW 3 Series E90 E91 E92 E93: 335i, 335iX, engine N55, 2010-2013
BMW X1 E84: 35i, engine N55, 2012-2015

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Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Ecotune do not assume responsibility for the use of this part on public roads in the UK or abroad where emissions controls have been removed. It is the customer’s responsibility to ensure compliance with the rules and laws of the area of use. We would like to advise that it is illegal to remove any emission control devices or increase the exhaust noise limit on vehicles permitted to drive on public roads in the UK and most other countries around the world. Please check the rules and laws relating to this in your country. Any parts supplied or work carried out by Ecotune are strictly for off-road use and may fail an MOT test. This means that we cannot accept any responsibility for vehicles being driven on public roads where removal of emission control devices is prohibited. If you carry out this work at our premises, we would not be able to road test afterwards..