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SB250i8/2 Nitrous Kit Complete+

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Quick Overview

Car Nitrous kit, the Street Blaster 250i8/2, suitable for most V8 injected engines with complex inlet manifold designs and two throttle bodies, capable of up to 250BHP

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SB250i8/2 Nitrous Kit Complete

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  • SB250i8/2 Nitrous Kit Complete


The Street-Blaster 250i8/2 is a special direct port system for 8 cylinder (commonly V configuration) fuel injected engines with 2 throttle bodies that are more than 12” apart (as most are).  This twin pair Pulsoid system delivers exceptional results, without the potential risks associated with using the standard direct port system and its single pair of Pulsoids - the Street-Blaster 250i8.

Whilst the standard Street-Blaster 250i8 is suitable for most 8 cylinder engines, the extra pair of Pulsoids in the Street-Blaster 250i8/2 ensures;


  • There is no delay in power delivery.
  • There is no risk of a backfire due to excessively long outlet pipes. 
  • Better results.

This system benefits from numerous unique features as standard equipment, which offer substantial advantages over all other brands.  

Click here for a comparison of WON vs other brands.

Click here to see the results of an independant test done on a WON kit vs a Nytrex kit.

If you want a well-priced system that delivers maximum reliability and power; the Street-Blaster 250i8/2 has been developed by WON with you in mind. This system is largely to gain a competitive edge for race use and can deliver a boost of up to 250bhp, whenever you need a burst of acceleration.  Utilising the same high-quality components as our ultimate race, Pro-Series systems the Street-Blaster 250i8/2 offers peace of mind and impressive results at a very competitive price. 


This kit is suitable for (but not limited to):

Chrysler 300C SRT-8 6.1 V8

Porsche 928 S4 V8 32V

MGZT 260 V8

Porsche Cayenne 4.5 V8

BMW 740i 4.0 V8

LS1 V8

Audi S4 V8

Toyota Soarer 4.0l V8


Whether you need or just want to experience the WON buzz, a Street-Blaster 250i8/2 can deliver - order online NOW!

Parts Included:

·        8 x Crossfire Injector (spacer & retainer).

·        2prs x Billet alloy Pulsoids with CNC machined SS fittings and laser cut mounting plates.

·        1 x 5lb Uncoated Bottle with Max-flow Valve.*

·        1 x Laserlite polished stainless steel QD bottle mounting system.

·     3m of 4mm blue nitrous nylon supply lines from Injectors to Y-blocks.

·     3m of 4mm red fuel nylon supply lines from Injectors to Y-blocks.

·     2 x 4 way Distribution Blocks.

·    4 x 2" of 4mm SS tube (Pulsoids to Y-Block). 

·    40 x 4mm retaining nuts and olives for nylon lines.

·    1pr x Metering Jets (suitable for your application).

·    3m of 5mm nylon fuel supply pipe. 

·    1 x 5mm Y-block.

·    2m of 5mm nylon nitrous supply pipe. 

·       1 x 5mm - 4AN ’Y’ piece.

·    12 x 5mm retaining nuts and olives for nylon lines.

·    5m of 4AN braided hose nitrous supply pipe.

·        1 x Fuel adapter - varies per application.

·        1 x Throttle activated micro switch & bracket (electronic TPS upgrade available for an additional charge).  

·        1 x Arming switch w/ aircraft style cover. 

·        1 x Electrical connectors & wire pack.

·        4 x Stickers.

*Bottle shipped empty

SB150i8 Installation Manual



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