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Best Automotive Replacement Exhaust Manifold & Parts

Dorman 674-439 Exhaust Manifold with Integrated Catalytic Converter (Non-CARB Compliant)
More like a complete kit than a single part, many of Dorman's Exhaust Manifolds include gaskets and hardware for a complete installation. Enter your model number to make sure this fits.
Reviews
"The lower 'gasket ring' that connects the bottom of the cat converter to the exhaust pipe was not included in my package."
"I'll probably have to take the bottom off again and get a proper gasket, which should have been included, but I think this manifold will outlast the rest of the motor. -1 star for weird nut sizes. -1 star for missing gasket. Maybe I was supposed to order some of those things separately, but the all the items in the picture were definitely not included."
"Also not directions on the gasket installation directions, the seal direction and it placement."
"While installing the sensor, I noticed a crack in the exhaust manifold from the oxygen sensor location backwards. The engine light did not go away until we put the new O2 sensor in, so both the sensor and the manifold were needed."
"Bought my car and had to replace the manifold right away. Study how to replace correctly and it will work."
"Both units were different from one another, and neither did I feel comfortable installing on my car. I chose it because it was steel and would be less prone to cracking, and because it looked more like "headers" and I thought I might get some modest performance gain. This was the third time I had my car apart in the garage, and I was expecting another failure and fully expected to have to return the Dorman and have to buy the overpriced prone to cracking Honda part. To sum up, this part fits great, works great and is less than one third the cost of the other options."
"This item fit my car perfectly and came with everything necessary to install."
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Dorman 674-559 Exhaust Manifold Kit
More like a complete kit than a single part, many of Dorman's Exhaust Manifolds include gaskets and hardware for a complete installation. Enter your model number to make sure this fits.
Reviews
"I recommend not using the supplied gasket."
"Just as described fit was perfect good product."
"Fit perfectly."
"Works great no problems so far."
"Manifold cracked and will need replacing after less than 20.000 miles."
"junk , had to reorder 2 last one close enough to make work."
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DORMAN 917-107 Exhaust Manifold Clamp
Easily repair exhaust leaks without removing broken manifold bolts with Dorman's Exhaust Manifold to Cylinder Head Repair Clamp. Eliminates the need to remove cylinder head, saving you time and money.
Reviews
"Read the many reviews and decided it was time to order as I was tired of exhaust noise on start up. Removed it with ratcheting wrench and then installed the bottom bolt to hold bracket in place."
"One final thought I have is install this whether there is a broken bolt or not as it will insure it won't break, basically it is reinforcing a common problem."
"Only works to eliminate exhasut leak ticks when the manifold bolt has been broken in the position mounted - doesn't address the many other causes of GM V8 ticks (carbon, lifters, etc)."
"Good luck getting a torque wrench in there. What I did was put my torque wrench in the vice, put my regular wrench up to it, and pushed at the same distance up the torque wrench handle as the regular wrench went. That allowed me to get a feel for how hard I needed to push on the regular wrench when tightening the bolts. It wasn't exact, but there was no way I could get a torque wrench up there."
"It does require some patience though, I worked from the top, bottom and removed the inter fender to get it installed.I thought it would be a 20 minute job but ended up taking close to 2 hour because there is not much room and my fingers are too big for the limited space between the engine and the firewall."
"The outer threads are stripped and the bolt sheared almost flat and is still buried in the head so removing the remainder of the bolt and installing a Helicoil would be very difficult, if not impossible, without pulling the head."
"This works for the right front and left rear broken exhaust manifold bolt."
"Put on as preventive measure due to past experience with the poor GM design."
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Best Automotive Replacement Exhaust Bolt & Spring Kits

Dorman 55164 Intake Manifold Isolator Bolt Kit
Dorman’s Engine Intake Manifold Isolator Bolts are suitable for a range of Ford applications. Enter your model number to make sure this fits.
Reviews
"With two intake plenum isolator bolts broken, and after staring at the product picture and description for a couple of hours, I took a chance and ordered."
"They are specified for use in the Windstar on many sites and even on Amazon it states they will not fit the Taurus (see picture)."
"Changed my intake manifold gaskets and swapped these in the place of the beat up OEM ones in my 2003 f150 4.2l."
"If you have to change your manifold gaskets, make sure you change the MANIFOLD Isolator bolts, they will reseal around your fuel plenum."
"use these for intake ford explorer v6 4.0 better then hex !"
"Great replacement bolts for one of FORD's finest invention of the plastic plenum on top of the intake."
"Excellent factory replacement for my 2004 Ford F-150 Heritage 4.2L V6."
"It came with extra pieces i didnt need but im just a beginner mechanic and i was not going to deep into the repair for the extra pieces."
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Best Automotive Replacement Exhaust Manifolds

DORMAN 917-107 Exhaust Manifold Clamp
Easily repair exhaust leaks without removing broken manifold bolts with Dorman's Exhaust Manifold to Cylinder Head Repair Clamp. Eliminates the need to remove cylinder head, saving you time and money.
Reviews
"Read the many reviews and decided it was time to order as I was tired of exhaust noise on start up. Removed it with ratcheting wrench and then installed the bottom bolt to hold bracket in place."
"One final thought I have is install this whether there is a broken bolt or not as it will insure it won't break, basically it is reinforcing a common problem."
"Only works to eliminate exhasut leak ticks when the manifold bolt has been broken in the position mounted - doesn't address the many other causes of GM V8 ticks (carbon, lifters, etc)."
"Good luck getting a torque wrench in there. What I did was put my torque wrench in the vice, put my regular wrench up to it, and pushed at the same distance up the torque wrench handle as the regular wrench went. That allowed me to get a feel for how hard I needed to push on the regular wrench when tightening the bolts. It wasn't exact, but there was no way I could get a torque wrench up there."
"It does require some patience though, I worked from the top, bottom and removed the inter fender to get it installed.I thought it would be a 20 minute job but ended up taking close to 2 hour because there is not much room and my fingers are too big for the limited space between the engine and the firewall."
"The outer threads are stripped and the bolt sheared almost flat and is still buried in the head so removing the remainder of the bolt and installing a Helicoil would be very difficult, if not impossible, without pulling the head."
"This works for the right front and left rear broken exhaust manifold bolt."
"Put on as preventive measure due to past experience with the poor GM design."
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Best Automotive Replacement Exhaust Headers & Parts

Subaru Impreza High Performance 4-1 Design Stainless Steel Exhaust Header Kit
The exhaust manifold found on the 1997-2005 Subaru Impreza 4 Cylinder Engines were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Precision machined steel flanges that provide a tight seal at the head and allows a high flow rate through the primary tubes.
Reviews
"First of all, I took a risk buying for my 2001 Subaru Legacy GT after doing some research about all Subaru 2.5l motors (which said that UEL headers should fit all 2.5l motors)."
"02 Impreza Wagon, 2.5l, Automatic."
"Another fitment issue was the oil cooler/coolant lines. Once installed there was a coolant line coming from the oil cooler that was just resting on the header."
"Together with this install i also installed: Walker 54573 Ultra EPA Certified Catalytic Converter. Bosal 279-771 Exhaust Silencer (because the Walker one comes up short). Walker 54315 Quiet-Flow Stainless Steel Muffler Assembly. Walker 35412 Hardware Spring Bolt Kit. Walker 31357 Exhaust Gasket. This setup proves quieter than the stock setup and more powerful than the Invidia g200 it was replacing."
"I will not lie I bought a different header that was a pain to install which it did not fit 100%, but this one did need some muscling to get it to fit correctly."
"Just installd yesterday went on easier than expexted had to cut the spacer on the one side to stretch, used a ounch pin to line up the holes."
"I was putting it on my 2005 Subaru Impreza 2.5rs... fitment was awful, should have returned them but I needed headers at the time."
"They were 1-2 inches short of fitting (even though they claim to fit perfectly) I had to get a local shop to extend and fit, and install them costing me nearly 3 times the price of the headers themselves."
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Best Automotive Replacement Exhaust Mufflers

Flowmaster 842515 Super 10 Muffler 409S - 2.50 Center IN / 2.50 Center OUT - Aggressive Sound
Durable Fully Welded 16ga Stainless Steel. Delta Flow technology for maximum scavenging effect.
Reviews
"No head turners just a bunch of head snappers when you drive by!."
"These work great and sound great I put these on my 89 mustang."
"This muffler makes it very loud inside your car or truck."
"Perfect."
"If you want a Deep and Aggresive Sound Gurantee Flowmaster Super 10 is the 1 for you."
"Great sounding loud mufflers for American V8's!"
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Best Automotive Replacement Exhaust Extension Pipes

Lisle 17350 Pipe Stretcher Kit
The pipe stretcher kit stretches pipe up to 4-1/4 inches including stainless steel. Expands all types of exhaust pipe, including stainless steel, from 1-5/8 inches to 4-1/4 inches in size.
Reviews
"I wanted the enlarged section to be as concentric as possible so I would expand a little, back the tool off, rotate it slightly, and repeat. The short Lisle video shows the expansion without moving the tool like I did and you could see there were gaps from the expansion of the tool. As an aside, Amazon has cheaper alternatives that have 6-8 sections that move out (not 4 like this item), but each of those tools had various complaints about the strength of the tool or its effectiveness on thicker tubing."
"So I'll give this 4 stars at the moment since I'm not ready to toss it under the bus for that until I prove otherwise."
"Works wonderfully, I have rented this product before for specific jobs, but this one really out shines the rentals!"
"Pipe stretcher works very well even with 4" pipe."
"This works exactly as expected."
"Tired of buying cheap pipe strecher, i try this one, it hold up a good impact torque and streach pipe with no effort, and the pipe seems very round."
"Requires significant torque to stretch 16ga T304 tubing, but easy to use overall."
"Used to expand converter pipe on a 2000 Sebring to reattach it to resonator pipe using a 2 1/8 to 2/14 adapter."
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Best Automotive Replacement Exhaust Cat-Back Systems

Magnaflow 19097 Stainless Steel Cat-Back Exhaust (2015 Ford Mustang L4 2.3L Ecoboost Street)
Made in the USA and engineered to last, for those seeking increased performance and better economy, MagnaFlow Touring Series Performance Exhaust systems deliver the smooth deep sound you want and the wide-open performance power you need. Enter your model number to make sure this fits.
Reviews
"The ecoboost convertible has a support bolted in the rear part of the car (very easy to remove).This added support is the reason you cannot use a 3 inch exhaust.Because of the tight fit you have to make sure that everything has the correct clearances before you tighten everything down."
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Best Automotive Replacement Exhaust Hangers, Clamps & Flanges

Cummins Onan 1552174 Exhaust Hanger
Brand New Genuine Onan Exhaust Tail Pipe Hanger Bracket ... We are an Authorized Onan Dealer... Enter your model number to make sure this fits.
Reviews
"I actually used half the bracket that was still attached to the motorhome and spliced the to brackets together to make the hanger work."
"Direct replacement for the OEM part on my Class A motorhome."
"As others have mentioned, it's shorter than what was there on the motorhome."
"Much needed support for a very long exhaust."
"Bought to replace the one on my motor home that I broke off by hitting a rock."
"We had to finagle it to get it to work (we didn't need the long steel piece) in order to replace the old one."
"Exact replacement."
"Works great."
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Best Automotive Replacement Exhaust Heat Wrap, Matting & Sleeving

DEI 010131 Titanium Exhaust Heat Wrap with LR Technology, 2" x 25' Roll
DEI Titanium exhaust wrap, with LR Technology, is made from pulverized lava rock and stranded into a fiber material and woven into a proprietary weave. The alloys used in the production of titanium exhaust systems tend to be thin and are designed to dissipate heat quickly. By wrapping the exhaust, the additional heat can make the titanium alloy turn brittle and prone to premature cracking. High resistance to abrasions, oil spills, temperatures and vibration breakdown.
Reviews
"Supposed to regulate the heat to slightly increase performance... who knows if it does. I wanted to run these pipes without the heat shields since the bands snapped and rattled around. Results: I like the look and the heat seems to dissapiate evenly throughout the pipe now."
"Though it is still very warm it will no longer burn you."
"In my opinion, this is a must for RAM 2500 trucks to insulate near your transmission to keep your transmission fluid temps down."
"One other thing to note from my research, one of the cautions with exhaust wrap is that with the temperature difference on where your wrap ends up ending, there is a possibility of the exhaust pipe cracking or becoming very brittle."
"With a couple hose clamps and about 10minutes I was able to completely wrap the midpipe on a 2006 Honda CBR600RR and what I feel to be very nice results."
"UPDATE Oct 16th. Worked excellent for 600 miles, till I saw what the redirected heat was doing to the rest of the exhaust system."
"I used this to wrap the exhaust on my 2014 Yamaha Grizzly 700."
"I have an RV that had large heat shields screwed into the exhaust pipe under the chassis to protect the plastic storage boxes from heat."
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Best Automotive Replacement Emission Dash Pots

Febi Dash Pot
Febi-Bilstein Dash Pot; 1977-1983 Mercedes-Benz 240D. Enter your model number to make sure this fits.
Reviews
"for some reason my old mercedes benz '82 240d uses this and my mb '85 300gd that i replaced it with uses it."
"The one I got has plastic ends instead of metal and a black shaft cover."
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Best Automotive Replacement Emission Smog Pumps

APDTY 015921 Gear Driven Mechanical Vacuum Pump Fits 1994-2002 Dodge Ram 2500 3500 Pickup w/ Cummins 5.9L Diesel Engine (Power Brake Booster; Replaces R5019734AA, 4746706, 5019734AA)
New Gear Driven Mechanical Vacuum Pump. Enter your model number to make sure this fits.
Reviews
"Works great so far, fit and functions like it is supposed to."
"Came with box covered in oil and busted up as well as the gasket broke."
"Can't stop from leaking motor oil I give up and the gear was so ruff I could hear it over my motor."
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Best Automotive Replacement Emission Solenoids

ACDelco 214-2149 Professional Vapor Canister Vent Solenoid
Vapor Canister Purge Solenoid. Manufactured to meet expectations for fit, form, and function.
Reviews
"fixed the "tighten fuel cap" and turned off the check engine light on my 05 chevy silverado. cut the OEM line off (no gas or fluid leaks out). i drove it a few times on short trips to see if engine light would turn off. the light stayed lit but i didn't get the tighten fuel cap beeps and warning. years ago when it start warning me, i bought a new fuel cap and that didn't help."
"When looking at the back of the Suburban, the Evap Solenoid is directly above the rear axle just to the right of the differential. Install was as simple as reconnecting the hose, wiring harness, and clipping it back on the mount."
"Because cutting the hose would have made it too short, I removed the canister and hose assembly in order to disconnect the hose without cutting it."
"The hose fitting will come off of the old part it has two barbs that keep it from allowing the fitting of the valve to come off."
"This will replace the factory one without running tubbing to the front and adding a filter."
"ACDelco 214-2149 Professional Vapor Canister Vent Solenoid This was an exact replacement for my 2004 Silverado 5.3L Vortex Engine (Extended Cab) Look at the chassis to determine if this part fits your truck before you order it."
"This item does work on 2010 Silverado 1500 (5.3 ext cab LT) which in my case had identical oval style electrical connector."
"The last time, I used the upgraded part number with remote mounted air intake."
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Best Automotive Replacement Emission Control Units

Audi Q7 MMI Control Circuit Board w navigation OEM design 2007 2008 2009 10 &11
Audi A6 - Avant C6 2006 V6 3.2L Quattro. Audi A6 - Avant C6 2007 V6 3.2L Quattro. Audi A6 - Avant C6 2008 V6 3.2L Quattro. Audi A6 - Avant C6 2009 V6 3.0 Quattro. Audi A6 - Avant C6 2010 V6 3.0 Quattro. Audi A6 - Avant C6 2011 V6 3.0 Quattro. Audi A6 C6 2005 V6 3.2L Quattro. Audi A6 C6 2005 V8 4.2L Quattro. Audi A6 C6 2006 V6 3.2L FWD. Audi A6 C6 2006 V6 3.2L Quattro. Audi A6 C6 2006 V8 4.2L Quattro. Audi A6 C6 2007 V6 3.2L FWD. Audi A6 C6 2007 V6 3.2L Quattro. Audi A6 C6 2007 V8 4.2L Quattro. Audi A6 C6 2008 V6 3.2L FWD. Audi A6 C6 2008 V6 3.2L Quattro. Audi A6 C6 2008 V8 4.2L Quattro. Audi A6 C6 2009 V6 3.0 Quattro. Audi A6 C6 2009 V6 3.2L FWD. Audi A6 C6 2009 V8 4.2L Quattro. Audi A6 C6 2008 V6 3.0 Quattro. Audi A6 C6 2010 V6 3.2L FWD. Audi A6 C6 2008 V8 4.2L Quattro. Audi Q7 2007 - 2008 3.0 TDI Quattro. Audi Q7 2007 - 2008 3.0T Quattro. Audi Q7 2007 - 2008 3.6L Quattro. Audi Q7 2007 - 2008 4.2L V8 Quattro. The Fitment is different depending on your model, please send your VIN.
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Best Automotive Replacement Emission Vapor Canisters

ACDelco 214-2137 GM Original Equipment Vapor Canister Vent Valve
An ACDelco GM Original Equipment Vapor Canister Purge Valve is an emission control component and is a GM-recommended replacement for your vehicle’s original component. Manufactured to GM OE specification for fit, form, and function.
Reviews
"I had just purchased the car a few months before and started getting check engine lights indicating there was a problem with my gas tank leaking vapors."
"This item is the OEM valve at a fraction of the cost from a dealer or other supplier, local or otherwise."
"Fit perfectly and works as intended."
"Hard to start right after fueling up, also rough idling always after fueling up."
"Solved my check engine code on my 2010 Buick Enclave."
"Ordered this part, fit perfectly, problem solved, and at a GREATprice!"
"Purchased for a friends Chevy Traverse that has issues starting after getting gas."
"Skeptical at first, but this solved the stutter/lope on first start after fueling up."
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Best Automotive Replacement Emission Diverter Valves

Go Fast Bits T9351 dv+ Blow off Valve or BOV/ diverter valve with TMS advantage
Go Fast Bits T9351. Enter your model number to make sure this fits.
Reviews
"Wow, that's all I can say."
"Really glad I didn't have the MIL issue once this was installed the throttle response is crisper and I'm prepped for tuning now."
"Have a MK5 GLI Stage 2+ the stock DV rev."
"Incredible piece of kit!"
"Arrived genuine, and is a great upgrade to the lacking design 2.0T VW DV."
"I keep getting low boost error now after more than 6 months."
"Installed in a 2009 a4 2.0t."
"go faster."
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Best Automotive Replacement Emission EGR Bleed Filters

Autospecialty (KOE4564) Daily Driver OE Brake Kit, Rear
Z16 Pads & OE replacement rotors by Power Stop. Includes a complete set of Autospecialty OE Replacement Brake rotors and high performance Evolution ceramic pads.
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