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4-Blade diffuser for rear of Gen 1 or 2 Viper. This fiberglass piece gived the form and fucntion of a diffuser in the stle of example sof race Vipers and other cars. Available with a hole in the piece for rear-exit exhaust, alsocan be avialble without cut hole for Side Exit exhaust. 


Available in 2 styles, orignal GTS-R Style w/ long diffuser strakes, and modern rounded-off strake design (Pictured Red GTS).


Finished in Satin Black. 


Easily installs in minutes suing factory mounting positions. 

4-Blade Diffuser

  • Current production time on hand-made Autoform parts varies heavily based upon part, trim, paint, etc. selected. Please reach out directly to us for more info.


    Rough production timelines are currently approx. 6+ months for most products.

  • Select Offline Payment and/or contact us at or 616-392-4909 for details on starting order with half-down deposit vs. paid-in-full.

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