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Your welcome!! Let us know if we can help in the future! Team Hellion

Hello. We design the kit to be 100% bolt on, and remove easily if needed. We have many customers who trade in their car and they keep the kit to go on the new model. If you have any questions please let us know! Team Hellion

That is dictated by the overall boost level we settle at. The great thing is we can set that to be happy with whichever fuel you choose to use. (E85, Pump, Etc.)

Hello. We only see the need to sleeve in applications over 1000 rwhp. The stock block is very capable with stock sleeves in a entry setup.

Hello. Whats great about our systems on these vehicles is that every single turbo option will deliver quick spool and amazing power. We offer many options to fill the desires of our customers as some prefer one turbo over the other. The good news is you cant go wrong. The larger the turbo...

Hello. We do not have a on shelf option to re enter the WG, but it definitely can be done by an experienced shop (Most ask for vented gates, so we made that standard). There is no backpressue issue with 55mm units as we size them correctly and they work really well (we have been 8.90's with...

Hello. We definitely did not try to purposely skimp on anything. We install kits here from our checklist and if we run into an issue we try to correct it right away. We do not want to delay an installation on something like a short line. We strive to be the best aftermarket company and...

Yes, the cat option is the same for both 15-17 and 18+. It is very simple to install. Please give us a call for more information 505-873-4670. Team Hellion

Hello. We feel it is important to let readers and forum members know that our R and D car for development of this kit was a lowered car (full Steeda setup) and we took the height into consideration. We have never lost any parts or had any negative results from our kit mounting. We...

Hello. No, we have all components at the level of the pinch weld and lower plastic. We have taken all conditions into consideration for clearance. We even have tested all of our turbo options for clearance, even the Precision 68/70 units that are available. Team Hellion

Hello. We can option high flow cats that will go behind the turbos for $250 total. As far a WG re-entry, it would be possible to custom fab if desired. Team Hellion

You wont be disappointed!

Hello. We originally designed the sleeper kit on a stock ride height vehicle. The tank height and placement was taken into consideration as we would not build one to have a clearance problem. The tank is in line with the body pinch weld and splash guard/front scrape guard. Lowered cars, in...

Hello. The loudvalves are very sturdy and usually do not have any leaks. There are many factors that can affect the position including tension and the vacuum setup. We will have someone contact you today to help with a resolution. Team Hellion

We ask ourselves this every day, lol. In all seriousness, we believe that it is due to the OEM tendency to opt for belt driven boost on upgraded V8 cars--- and this has carried over to the aftermarket for Mustangs. If you look at all other markets, turbo is king, and if you follow the...

Your welcome! Thank you for having us a part of your project!

We are a bit biased but a twin sleeper kit has adjustable boost so you can go from mild to wild with a simple boost change if desired! As far as streetable, twin turbos are the easiest power adder on the engine as you don't have a belt pulling on the crank 100% of the time, if you are idling in...

Hello, our apologies for the confusion. You will not be able to use your stock manifolds. In order to fit our system underneath, we need to either use factory GT manifolds or upgrade to our dual 4-1 units. The factory Gt350 headers do not allow enough room for our sleeper kit. Hope this...

This pull was on pump gas! Being in rain or other weather conditions will not be a problem. The air cleaners are very high and we have never seen any issues with their placement. They need to be cleaned as all K and N filters do, but they do a great job where they are located. Team Hellion

Hello. Please email [email protected] and we can give a price and shipping quote. The system pricing is comparable to our LHD units. Team Hellion