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      12-05-2012, 06:49 PM   #1
GTM_Challenge
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Drives: E46 M3, E90 M3
Join Date: Jan 2010
Location: Nashville

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CHALLENGE - F30 335 - HFC and Catless Downpipes - Now Released! - Pics inside -

CHALLENGE - F30 335 - HFC and Catless Downpipes - Now Released!


HFC Downpipe

New for 2012! Challenge has designed their new F30 335i stainless steel catless downpipe. Each downpipe is made from 3inch mandrel bent stainless steel tubing and 200 cell metallic core cat. Custom machined 304 stainless flanges and formed mount brackets ensure a factory fit and long lasting performance. Current ECU version on US models are able to use this downpipe with no ECU flash or check engine light. Some models may require an ECU tune or flash. Off road or racing use only. Challenge exhaust parts are deisgned, engineered and manufactured in the USA.









Dyno graph of stock 335 before and after Challenge HFC Downpipe and Sport Catback Exhaust:





Catless Downpipe

Challenge has designed their new F30 335i stainless steel catless downpipe. Each downpipe is made from 3 inch mandrel bent stainless steel tubing. Custom machined 304 stainless flanges and formed mount brackets ensure a factory fit and long lasting performance. ECU programing will be required to use this part as the primary cat is removed. Off road or racing use only. Challenge exhaust parts are deisgned, engineered and manufactured in the USA.









Dynos of catless downpipe to come soon.



PLEASE EMAIL OR PM US WITH ANY QUESTIONS OR PRICING DETAILS

Last edited by GTM_Challenge; 12-06-2012 at 03:18 PM..
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